7990008 has 32 divisors (see below), whose sum is σ = 21512400. Its totient is φ = 2458368.

The previous prime is 7990001. The next prime is 7990057. The reversal of 7990008 is 8000997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7990001) 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, 12493 + ... + 13116.

Almost surely, 2^7990008 is an apocalyptic number.

7990008 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

7990008 is an abundant number, since it is smaller than the sum of its proper divisors (13522392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7990008 is a wasteful number, since it uses less digits than its factorization.

7990008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25631 (or 25627 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 7990008 is about 2826.6602201184. The cubic root of 7990008 is about 199.9166986426.

The spelling of 7990008 in words is "seven million, nine hundred ninety thousand, eight".