693688688 has 80 divisors (see below), whose sum is σ = 1710009600. Its totient is φ = 270244800.

The previous prime is 693688669. The next prime is 693688703. The reversal of 693688688 is 886886396.

It is a super-2 number, since 2×693688688² = 962407991718322688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 693688688.

It is a congruent number.

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, 54623 + ... + 66113.

It is an arithmetic number, because the mean of its divisors is an integer number (21375120).

Almost surely, 2^693688688 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 693688688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (855004800).

693688688 is an abundant number, since it is smaller than the sum of its proper divisors (1016320912).

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

693688688 is a wasteful number, since it uses less digits than its factorization.

693688688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11531 (or 11511 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 62.

The square root of 693688688 is about 26337.9704609144. The cubic root of 693688688 is about 885.2274466213.

The spelling of 693688688 in words is "six hundred ninety-three million, six hundred eighty-eight thousand, six hundred eighty-eight".