7993656 has 48 divisors (see below), whose sum is σ = 23619960. Its totient is φ = 2422080.

The previous prime is 7993651. The next prime is 7993663. The reversal of 7993656 is 6563997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7993651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4255 + ... + 5838.

Almost surely, 2^7993656 is an apocalyptic number.

It is an amenable number.

7993656 is an abundant number, since it is smaller than the sum of its proper divisors (15626304).

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

7993656 is a wasteful number, since it uses less digits than its factorization.

7993656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10116 (or 10109 counting only the distinct ones).

The product of its digits is 306180, while the sum is 45.

The square root of 7993656 is about 2827.3054309713. The cubic root of 7993656 is about 199.9471193528.

It can be divided in two parts, 7993 and 656, that added together give a square (8649 = 93²).

The spelling of 7993656 in words is "seven million, nine hundred ninety-three thousand, six hundred fifty-six".