82315379 has 2 divisors, whose sum is σ = 82315380. Its totient is φ = 82315378.

The previous prime is 82315357. The next prime is 82315399. The reversal of 82315379 is 97351328.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82315379 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82315319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41157689 + 41157690.

It is an arithmetic number, because the mean of its divisors is an integer number (41157690).

Almost surely, 2^82315379 is an apocalyptic number.

82315379 is a deficient number, since it is larger than the sum of its proper divisors (1).

82315379 is an equidigital number, since it uses as much as digits as its factorization.

82315379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 82315379 is about 9072.7823185614. The cubic root of 82315379 is about 435.0044109299.

The spelling of 82315379 in words is "eighty-two million, three hundred fifteen thousand, three hundred seventy-nine".