7979568 has 40 divisors (see below), whose sum is σ = 21175728. Its totient is φ = 2587392.

The previous prime is 7979567. The next prime is 7979581. The reversal of 7979568 is 8659797.

It is a self number, because there is not a number n which added to its sum of digits gives 7979568.

It is not an unprimeable number, because it can be changed into a prime (7979561) 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, 471 + ... + 4022.

Almost surely, 2^7979568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7979568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10587864).

7979568 is an abundant number, since it is smaller than the sum of its proper divisors (13196160).

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

7979568 is a wasteful number, since it uses less digits than its factorization.

7979568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541 (or 4535 counting only the distinct ones).

The product of its digits is 952560, while the sum is 51.

The square root of 7979568 is about 2824.8129141591. The cubic root of 7979568 is about 199.8295881736.

The spelling of 7979568 in words is "seven million, nine hundred seventy-nine thousand, five hundred sixty-eight".