397379829 has 32 divisors (see below), whose sum is σ = 669911040. Its totient is φ = 203515200.

The previous prime is 397379797. The next prime is 397379861. The reversal of 397379829 is 928973793.

It is an interprime number because it is at equal distance from previous prime (397379797) and next prime (397379861).

It is not a de Polignac number, because 397379829 - 2⁵ = 397379797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397379329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4287 + ... + 28515.

It is an arithmetic number, because the mean of its divisors is an integer number (20934720).

Almost surely, 2^397379829 is an apocalyptic number.

It is an amenable number.

397379829 is a deficient number, since it is larger than the sum of its proper divisors (272531211).

397379829 is a wasteful number, since it uses less digits than its factorization.

397379829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24321.

The product of its digits is 5143824, while the sum is 57.

The square root of 397379829 is about 19934.3881019709. The cubic root of 397379829 is about 735.1939753661.

The spelling of 397379829 in words is "three hundred ninety-seven million, three hundred seventy-nine thousand, eight hundred twenty-nine".