397011279 has 24 divisors (see below), whose sum is σ = 617569920. Its totient is φ = 226201584.

The previous prime is 397011269. The next prime is 397011281. The reversal of 397011279 is 972110793.

It is not a de Polignac number, because 397011279 - 2⁷ = 397011151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397011239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49012 + ... + 56534.

It is an arithmetic number, because the mean of its divisors is an integer number (25732080).

Almost surely, 2^397011279 is an apocalyptic number.

397011279 is a deficient number, since it is larger than the sum of its proper divisors (220558641).

397011279 is a wasteful number, since it uses less digits than its factorization.

397011279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7899 (or 7892 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 397011279 is about 19925.1418815526. The cubic root of 397011279 is about 734.9666197992.

The spelling of 397011279 in words is "three hundred ninety-seven million, eleven thousand, two hundred seventy-nine".