7640812 has 12 divisors (see below), whose sum is σ = 14075320. Its totient is φ = 3619296.

The previous prime is 7640777. The next prime is 7640821. The reversal of 7640812 is 2180467.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 50193 + ... + 50344.

Almost surely, 2^7640812 is an apocalyptic number.

It is an amenable number.

7640812 is a deficient number, since it is larger than the sum of its proper divisors (6434508).

7640812 is a wasteful number, since it uses less digits than its factorization.

7640812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100560 (or 100558 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 7640812 is about 2764.2018739593. The cubic root of 7640812 is about 196.9608174454.

The spelling of 7640812 in words is "seven million, six hundred forty thousand, eight hundred twelve".