Search a number
-
+
8006997 = 32668999
BaseRepresentation
bin11110100010110101010101
3120001210112110
4132202311111
54022210442
6443341233
7125026005
oct36426525
916053473
108006997
114579859
122821819
13187468b
1410c6005
15a8269c
hex7a2d55

8006997 has 4 divisors (see below), whose sum is σ = 10676000. Its totient is φ = 5337996.

The previous prime is 8006989. The next prime is 8007001. The reversal of 8006997 is 7996008.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8006997 - 23 = 8006989 is a prime.

It is a super-2 number, since 2×80069972 = 128224001916018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8006597) 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, 1334497 + ... + 1334502.

It is an arithmetic number, because the mean of its divisors is an integer number (2669000).

Almost surely, 28006997 is an apocalyptic number.

It is an amenable number.

8006997 is a deficient number, since it is larger than the sum of its proper divisors (2669003).

8006997 is a wasteful number, since it uses less digits than its factorization.

8006997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669002.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 8006997 is about 2829.6637609440. The cubic root of 8006997 is about 200.0582913423.

The spelling of 8006997 in words is "eight million, six thousand, nine hundred ninety-seven".

Divisors: 1 3 2668999 8006997