7656672 has 24 divisors (see below), whose sum is σ = 20099016. Its totient is φ = 2552192.

The previous prime is 7656661. The next prime is 7656673. The reversal of 7656672 is 2766567.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×7656672² = 117249252231168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7656672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7656673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39783 + ... + 39974.

It is an arithmetic number, because the mean of its divisors is an integer number (837459).

Almost surely, 2^7656672 is an apocalyptic number.

It is an amenable number.

7656672 is an abundant number, since it is smaller than the sum of its proper divisors (12442344).

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

7656672 is a wasteful number, since it uses less digits than its factorization.

7656672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79770 (or 79762 counting only the distinct ones).

The product of its digits is 105840, while the sum is 39.

The square root of 7656672 is about 2767.0692076636. The cubic root of 7656672 is about 197.0970001662.

The spelling of 7656672 in words is "seven million, six hundred fifty-six thousand, six hundred seventy-two".