788656 has 20 divisors (see below), whose sum is σ = 1667304. Its totient is φ = 358400.

The previous prime is 788651. The next prime is 788659. The reversal of 788656 is 656887.

It is not an unprimeable number, because it can be changed into a prime (788651) 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, 2065 + ... + 2416.

2⁷⁸⁸⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

788656 is an abundant number, since it is smaller than the sum of its proper divisors (878648).

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

788656 is a wasteful number, since it uses less digits than its factorization.

788656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500 (or 4494 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 788656 is about 888.0630608239. The cubic root of 788656 is about 92.3909013236.

Subtracting from 788656 its reverse (656887), we obtain a square (131769 = 363²).

It can be divided in two parts, 788 and 656, that added together give a square (1444 = 38²).

The spelling of 788656 in words is "seven hundred eighty-eight thousand, six hundred fifty-six".