397096979 has 4 divisors (see below), whose sum is σ = 417996840. Its totient is φ = 376197120.

The previous prime is 397096961. The next prime is 397096981. The reversal of 397096979 is 979690793.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 397096979 - 2²⁰ = 396048403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397096079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10449902 + ... + 10449939.

It is an arithmetic number, because the mean of its divisors is an integer number (104499210).

Almost surely, 2^397096979 is an apocalyptic number.

397096979 is a deficient number, since it is larger than the sum of its proper divisors (20899861).

397096979 is a wasteful number, since it uses less digits than its factorization.

397096979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20899860.

The product of its (nonzero) digits is 5786802, while the sum is 59.

The square root of 397096979 is about 19927.2923148129. The cubic root of 397096979 is about 735.0194999994.

The spelling of 397096979 in words is "three hundred ninety-seven million, ninety-six thousand, nine hundred seventy-nine".