397074079 has 4 divisors (see below), whose sum is σ = 397152400. Its totient is φ = 396995760.

The previous prime is 397074043. The next prime is 397074091. The reversal of 397074079 is 970470793.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397074079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397074019) 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, 30987 + ... + 41884.

It is an arithmetic number, because the mean of its divisors is an integer number (99288100).

Almost surely, 2^397074079 is an apocalyptic number.

397074079 is a deficient number, since it is larger than the sum of its proper divisors (78321).

397074079 is an equidigital number, since it uses as much as digits as its factorization.

397074079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78320.

The product of its (nonzero) digits is 333396, while the sum is 46.

The square root of 397074079 is about 19926.7177176774. The cubic root of 397074079 is about 735.0053705625.

It can be divided in two parts, 39707407 and 9, that added together give a triangular number (39707416 = T₈₉₁₁).

The spelling of 397074079 in words is "three hundred ninety-seven million, seventy-four thousand, seventy-nine".