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7982897 = 13661929
BaseRepresentation
bin11110011100111100110001
3120000120110212
4132130330301
54020423042
6443033505
7124565516
oct36347461
916016425
107982897
11456273a
12280b895
131866710
1410bb30d
15a7a482
hex79cf31

7982897 has 8 divisors (see below), whose sum is σ = 8619240. Its totient is φ = 7349760.

The previous prime is 7982893. The next prime is 7982899.

It is a happy number.

7982897 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 7921 + 7974976 = 89^2 + 2824^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7982897 - 22 = 7982893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7982893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8129 + ... + 9057.

It is an arithmetic number, because the mean of its divisors is an integer number (1077405).

Almost surely, 27982897 is an apocalyptic number.

It is an amenable number.

7982897 is a deficient number, since it is larger than the sum of its proper divisors (636343).

7982897 is a wasteful number, since it uses less digits than its factorization.

7982897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603.

The product of its digits is 508032, while the sum is 50.

The square root of 7982897 is about 2825.4020952778. The cubic root of 7982897 is about 199.8573733123.

The spelling of 7982897 in words is "seven million, nine hundred eighty-two thousand, eight hundred ninety-seven".

Divisors: 1 13 661 929 8593 12077 614069 7982897