697399872 has 56 divisors (see below), whose sum is σ = 1987149696. Its totient is φ = 214583808.

The previous prime is 697399867. The next prime is 697399877. The reversal of 697399872 is 278993796.

It is an interprime number because it is at equal distance from previous prime (697399867) and next prime (697399877).

It is not an unprimeable number, because it can be changed into a prime (697399877) 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, 137208 + ... + 142199.

It is an arithmetic number, because the mean of its divisors is an integer number (35484816).

Almost surely, 2^697399872 is an apocalyptic number.

It is an amenable number.

697399872 is an abundant number, since it is smaller than the sum of its proper divisors (1289749824).

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

697399872 is a wasteful number, since it uses less digits than its factorization.

697399872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279435 (or 279425 counting only the distinct ones).

The product of its digits is 10287648, while the sum is 60.

The square root of 697399872 is about 26408.3295950350. The cubic root of 697399872 is about 886.8032739062.

The spelling of 697399872 in words is "six hundred ninety-seven million, three hundred ninety-nine thousand, eight hundred seventy-two".