397555 has 8 divisors (see below), whose sum is σ = 497952. Its totient is φ = 304128.

The previous prime is 397549. The next prime is 397567. The reversal of 397555 is 555793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 397555 - 2³ = 397547 is a prime.

It is a Duffinian number.

397555 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 397555.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1614 + ... + 1843.

It is an arithmetic number, because the mean of its divisors is an integer number (62244).

2³⁹⁷⁵⁵⁵ is an apocalyptic number.

397555 is a deficient number, since it is larger than the sum of its proper divisors (100397).

397555 is a wasteful number, since it uses less digits than its factorization.

397555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485.

The product of its digits is 23625, while the sum is 34.

The square root of 397555 is about 630.5196269745. The cubic root of 397555 is about 73.5301987680.

The spelling of 397555 in words is "three hundred ninety-seven thousand, five hundred fifty-five".