397279461 has 8 divisors (see below), whose sum is σ = 530323200. Its totient is φ = 264544352.

The previous prime is 397279433. The next prime is 397279469. The reversal of 397279461 is 164972793.

It is a happy number.

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 397279461 - 2⁵ = 397279429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 397279461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397279469) 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, 74136 + ... + 79313.

It is an arithmetic number, because the mean of its divisors is an integer number (66290400).

Almost surely, 2^397279461 is an apocalyptic number.

It is an amenable number.

397279461 is a deficient number, since it is larger than the sum of its proper divisors (133043739).

397279461 is a wasteful number, since it uses less digits than its factorization.

397279461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154315.

The product of its digits is 571536, while the sum is 48.

The square root of 397279461 is about 19931.8704842270. The cubic root of 397279461 is about 735.1320730777.

The spelling of 397279461 in words is "three hundred ninety-seven million, two hundred seventy-nine thousand, four hundred sixty-one".