788680 has 16 divisors (see below), whose sum is σ = 1774620. Its totient is φ = 315456.

The previous prime is 788677. The next prime is 788687. The reversal of 788680 is 86887.

It can be written as a sum of positive squares in 2 ways, for example, as 702244 + 86436 = 838^2 + 294^2 .

It is a super-2 number, since 2×788680² = 1244032284800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (788687) 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, 9819 + ... + 9898.

2⁷⁸⁸⁶⁸⁰ is an apocalyptic number.

It is an amenable number.

788680 is an abundant number, since it is smaller than the sum of its proper divisors (985940).

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

788680 is a wasteful number, since it uses less digits than its factorization.

788680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19728 (or 19724 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 788680 is about 888.0765732751. The cubic root of 788680 is about 92.3918385125.

The spelling of 788680 in words is "seven hundred eighty-eight thousand, six hundred eighty".