397455 has 8 divisors (see below), whose sum is σ = 635952. Its totient is φ = 211968.

The previous prime is 397433. The next prime is 397459. The reversal of 397455 is 554793.

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

It is not a de Polignac number, because 397455 - 2⁹ = 396943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397459) 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, 13234 + ... + 13263.

It is an arithmetic number, because the mean of its divisors is an integer number (79494).

2³⁹⁷⁴⁵⁵ is an apocalyptic number.

397455 is a deficient number, since it is larger than the sum of its proper divisors (238497).

397455 is a wasteful number, since it uses less digits than its factorization.

397455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26505.

The product of its digits is 18900, while the sum is 33.

The square root of 397455 is about 630.4403223145. The cubic root of 397455 is about 73.5240330497.

The spelling of 397455 in words is "three hundred ninety-seven thousand, four hundred fifty-five".