697992 has 32 divisors (see below), whose sum is σ = 1766400. Its totient is φ = 229824.

The previous prime is 697979. The next prime is 697993. The reversal of 697992 is 299796.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697992.

It is not an unprimeable number, because it can be changed into a prime (697993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2934 + ... + 3162.

It is an arithmetic number, because the mean of its divisors is an integer number (55200).

2⁶⁹⁷⁹⁹² is an apocalyptic number.

It is an amenable number.

697992 is an abundant number, since it is smaller than the sum of its proper divisors (1068408).

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

697992 is a wasteful number, since it uses less digits than its factorization.

697992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 361 counting only the distinct ones).

The product of its digits is 61236, while the sum is 42.

The square root of 697992 is about 835.4591551955. The cubic root of 697992 is about 88.7054183285.

Subtracting from 697992 its product of digits (61236), we obtain a triangular number (636756 = T₁₁₂₈).

The spelling of 697992 in words is "six hundred ninety-seven thousand, nine hundred ninety-two".