397279455 has 16 divisors (see below), whose sum is σ = 669102720. Its totient is φ = 200730528.

The previous prime is 397279433. The next prime is 397279469. The reversal of 397279455 is 554972793.

It is not a de Polignac number, because 397279455 - 2⁷ = 397279327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 397279398 and 397279407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 696697 + ... + 697266.

It is an arithmetic number, because the mean of its divisors is an integer number (41818920).

Almost surely, 2^397279455 is an apocalyptic number.

397279455 is a deficient number, since it is larger than the sum of its proper divisors (271823265).

397279455 is a wasteful number, since it uses less digits than its factorization.

397279455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393990.

The product of its digits is 2381400, while the sum is 51.

The square root of 397279455 is about 19931.8703337143. The cubic root of 397279455 is about 735.1320693769.

The spelling of 397279455 in words is "three hundred ninety-seven million, two hundred seventy-nine thousand, four hundred fifty-five".