697695264 has 72 divisors (see below), whose sum is σ = 2267516160. Its totient is φ = 199340928.

The previous prime is 697695221. The next prime is 697695277. The reversal of 697695264 is 462596796.

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 697695264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171024 + ... + 175055.

It is an arithmetic number, because the mean of its divisors is an integer number (31493280).

Almost surely, 2^697695264 is an apocalyptic number.

It is an amenable number.

697695264 is an abundant number, since it is smaller than the sum of its proper divisors (1569820896).

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

697695264 is a wasteful number, since it uses less digits than its factorization.

697695264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346102 (or 346091 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 697695264 is about 26413.9217837867. The cubic root of 697695264 is about 886.9284615866.

The spelling of 697695264 in words is "six hundred ninety-seven million, six hundred ninety-five thousand, two hundred sixty-four".