696816680 has 64 divisors (see below), whose sum is σ = 1803790080. Its totient is φ = 237312000.

The previous prime is 696816629. The next prime is 696816709. The reversal of 696816680 is 86618696.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34040 + ... + 50520.

It is an arithmetic number, because the mean of its divisors is an integer number (28184220).

Almost surely, 2^696816680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 696816680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (901895040).

696816680 is an abundant number, since it is smaller than the sum of its proper divisors (1106973400).

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

696816680 is a wasteful number, since it uses less digits than its factorization.

696816680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16650 (or 16646 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 696816680 is about 26397.2854665020. The cubic root of 696816680 is about 886.5560122211.

The spelling of 696816680 in words is "six hundred ninety-six million, eight hundred sixteen thousand, six hundred eighty".