397055 has 4 divisors (see below), whose sum is σ = 476472. Its totient is φ = 317640.

The previous prime is 397051. The next prime is 397057. The reversal of 397055 is 550793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550793 = 47 ⋅11719.

It is not a de Polignac number, because 397055 - 2² = 397051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39701 + ... + 39710.

It is an arithmetic number, because the mean of its divisors is an integer number (119118).

2³⁹⁷⁰⁵⁵ is an apocalyptic number.

397055 is a deficient number, since it is larger than the sum of its proper divisors (79417).

397055 is an equidigital number, since it uses as much as digits as its factorization.

397055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79416.

The product of its (nonzero) digits is 4725, while the sum is 29.

The square root of 397055 is about 630.1230038651. The cubic root of 397055 is about 73.4993598291.

The spelling of 397055 in words is "three hundred ninety-seven thousand, fifty-five".