397775379 has 8 divisors (see below), whose sum is σ = 530525632. Its totient is φ = 265104360.

The previous prime is 397775377. The next prime is 397775381. The reversal of 397775379 is 973577793.

It is an interprime number because it is at equal distance from previous prime (397775377) and next prime (397775381).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 397775379 - 2¹ = 397775377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397775377) 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, 6889 + ... + 29034.

It is an arithmetic number, because the mean of its divisors is an integer number (66315704).

Almost surely, 2^397775379 is an apocalyptic number.

397775379 is a deficient number, since it is larger than the sum of its proper divisors (132750253).

397775379 is a wasteful number, since it uses less digits than its factorization.

397775379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39617.

The product of its digits is 8751645, while the sum is 57.

The square root of 397775379 is about 19944.3069320546. The cubic root of 397775379 is about 735.4378306737.

The spelling of 397775379 in words is "three hundred ninety-seven million, seven hundred seventy-five thousand, three hundred seventy-nine".