7912664 has 16 divisors (see below), whose sum is σ = 15617400. Its totient is φ = 3748032.

The previous prime is 7912651. The next prime is 7912669. The reversal of 7912664 is 4662197.

It is a super-2 number, since 2×7912664² = 125220503153792, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7912669) 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, 25877 + ... + 26180.

Almost surely, 2^7912664 is an apocalyptic number.

It is an amenable number.

7912664 is a deficient number, since it is larger than the sum of its proper divisors (7704736).

7912664 is a wasteful number, since it uses less digits than its factorization.

7912664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52082 (or 52078 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 7912664 is about 2812.9457868932. The cubic root of 7912664 is about 199.2695353550.

The spelling of 7912664 in words is "seven million, nine hundred twelve thousand, six hundred sixty-four".