379990931 has 2 divisors, whose sum is σ = 379990932. Its totient is φ = 379990930.

The previous prime is 379990907. The next prime is 379990939. The reversal of 379990931 is 139099973.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 379990931 - 2¹⁸ = 379728787 is a prime.

It is a super-2 number, since 2×379990931² = 288786215284493522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 379990931.

It is not a weakly prime, because it can be changed into another prime (379990939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189995465 + 189995466.

It is an arithmetic number, because the mean of its divisors is an integer number (189995466).

Almost surely, 2^379990931 is an apocalyptic number.

379990931 is a deficient number, since it is larger than the sum of its proper divisors (1).

379990931 is an equidigital number, since it uses as much as digits as its factorization.

379990931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 413343, while the sum is 50.

The square root of 379990931 is about 19493.3560732881. The cubic root of 379990931 is about 724.3098821768.

The spelling of 379990931 in words is "three hundred seventy-nine million, nine hundred ninety thousand, nine hundred thirty-one".