7973656 has 16 divisors (see below), whose sum is σ = 15008040. Its totient is φ = 3971520.

The previous prime is 7973653. The next prime is 7973659. The reversal of 7973656 is 6563797.

It is an interprime number because it is at equal distance from previous prime (7973653) and next prime (7973659).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7973653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475 + ... + 4021.

Almost surely, 2^7973656 is an apocalyptic number.

It is an amenable number.

7973656 is a deficient number, since it is larger than the sum of its proper divisors (7034384).

7973656 is a wasteful number, since it uses less digits than its factorization.

7973656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834 (or 3830 counting only the distinct ones).

The product of its digits is 238140, while the sum is 43.

The square root of 7973656 is about 2823.7662792802. The cubic root of 7973656 is about 199.7802252504.

The spelling of 7973656 in words is "seven million, nine hundred seventy-three thousand, six hundred fifty-six".