7940008 has 16 divisors (see below), whose sum is σ = 14976180. Its totient is φ = 3946368.

The previous prime is 7939979. The next prime is 7940011. The reversal of 7940008 is 8000497.

It can be written as a sum of positive squares in 2 ways, for example, as 7851204 + 88804 = 2802^2 + 298^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1485 + ... + 4252.

Almost surely, 2^7940008 is an apocalyptic number.

It is an amenable number.

7940008 is a deficient number, since it is larger than the sum of its proper divisors (7036172).

7940008 is a wasteful number, since it uses less digits than its factorization.

7940008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5916 (or 5912 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 7940008 is about 2817.8019802676. The cubic root of 7940008 is about 199.4988117676.

The spelling of 7940008 in words is "seven million, nine hundred forty thousand, eight".