697390830 has 64 divisors (see below), whose sum is σ = 1969116480. Its totient is φ = 175030272.

The previous prime is 697390819. The next prime is 697390871. The reversal of 697390830 is 38093796.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71379 + ... + 80558.

It is an arithmetic number, because the mean of its divisors is an integer number (30767445).

Almost surely, 2^697390830 is an apocalyptic number.

697390830 is an abundant number, since it is smaller than the sum of its proper divisors (1271725650).

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

697390830 is a wasteful number, since it uses less digits than its factorization.

697390830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151970 (or 151964 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 697390830 is about 26408.1583984950. The cubic root of 697390830 is about 886.7994413322.

The spelling of 697390830 in words is "six hundred ninety-seven million, three hundred ninety thousand, eight hundred thirty".