397558 has 16 divisors (see below), whose sum is σ = 692640. Its totient is φ = 167616.

The previous prime is 397549. The next prime is 397567. The reversal of 397558 is 855793.

It is an interprime number because it is at equal distance from previous prime (397549) and next prime (397567).

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

397558 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 828 + ... + 1216.

It is an arithmetic number, because the mean of its divisors is an integer number (43290).

2³⁹⁷⁵⁵⁸ is an apocalyptic number.

397558 is a deficient number, since it is larger than the sum of its proper divisors (295082).

397558 is a wasteful number, since it uses less digits than its factorization.

397558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471.

The product of its digits is 37800, while the sum is 37.

The square root of 397558 is about 630.5220059601. The cubic root of 397558 is about 73.5303837236.

The spelling of 397558 in words is "three hundred ninety-seven thousand, five hundred fifty-eight".