788840680 has 32 divisors (see below), whose sum is σ = 1776012840. Its totient is φ = 315336960.

The previous prime is 788840669. The next prime is 788840693. The reversal of 788840680 is 86048887.

It can be written as a sum of positive squares in 4 ways, for example, as 135629316 + 653211364 = 11646^2 + 25558^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69142 + ... + 79738.

Almost surely, 2^788840680 is an apocalyptic number.

It is an amenable number.

788840680 is an abundant number, since it is smaller than the sum of its proper divisors (987172160).

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

788840680 is a wasteful number, since it uses less digits than its factorization.

788840680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12469 (or 12465 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 49.

The square root of 788840680 is about 28086.3076960999. The cubic root of 788840680 is about 923.9811250306.

The spelling of 788840680 in words is "seven hundred eighty-eight million, eight hundred forty thousand, six hundred eighty".