693888264 has 48 divisors (see below), whose sum is σ = 1925125020. Its totient is φ = 225653760.

The previous prime is 693888263. The next prime is 693888271. The reversal of 693888264 is 462888396.

It can be written as a sum of positive squares in 2 ways, for example, as 573985764 + 119902500 = 23958^2 + 10950^2 .

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 693888264.

It is not an unprimeable number, because it can be changed into a prime (693888263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114577 + ... + 120480.

Almost surely, 2^693888264 is an apocalyptic number.

It is an amenable number.

693888264 is an abundant number, since it is smaller than the sum of its proper divisors (1231236756).

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

693888264 is a wasteful number, since it uses less digits than its factorization.

693888264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235110 (or 235103 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The square root of 693888264 is about 26341.7589389927. The cubic root of 693888264 is about 885.3123325439.

The spelling of 693888264 in words is "six hundred ninety-three million, eight hundred eighty-eight thousand, two hundred sixty-four".