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7000997 = 10216857
BaseRepresentation
bin11010101101001110100101
3111011200120012
4122231032211
53243012442
6410020005
7113336033
oct32551645
914150505
107000997
113a51a53
122417605
1315b1803
14d03553
15934582
hex6ad3a5

7000997 has 4 divisors (see below), whose sum is σ = 7008876. Its totient is φ = 6993120.

The previous prime is 7000969. The next prime is 7001003. The reversal of 7000997 is 7990007.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7990007 = 19341399.

It can be written as a sum of positive squares in 2 ways, for example, as 1473796 + 5527201 = 1214^2 + 2351^2 .

It is a cyclic number.

It is not a de Polignac number, because 7000997 - 210 = 6999973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7000297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2408 + ... + 4449.

It is an arithmetic number, because the mean of its divisors is an integer number (1752219).

Almost surely, 27000997 is an apocalyptic number.

It is an amenable number.

7000997 is a deficient number, since it is larger than the sum of its proper divisors (7879).

7000997 is a wasteful number, since it uses less digits than its factorization.

7000997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7878.

The product of its (nonzero) digits is 3969, while the sum is 32.

The square root of 7000997 is about 2645.9397196459. The cubic root of 7000997 is about 191.3021997146.

It can be divided in two parts, 7000 and 997, that added together give a palindrome (7997).

The spelling of 7000997 in words is "seven million, nine hundred ninety-seven", and thus it is an aban number.

Divisors: 1 1021 6857 7000997