813696379 has 2 divisors, whose sum is σ = 813696380. Its totient is φ = 813696378.

The previous prime is 813696349. The next prime is 813696407. The reversal of 813696379 is 973696318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 813696379 - 2⁷ = 813696251 is a prime.

It is not a weakly prime, because it can be changed into another prime (813696329) 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, 406848189 + 406848190.

It is an arithmetic number, because the mean of its divisors is an integer number (406848190).

Almost surely, 2^813696379 is an apocalyptic number.

813696379 is a deficient number, since it is larger than the sum of its proper divisors (1).

813696379 is an equidigital number, since it uses as much as digits as its factorization.

813696379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 52.

The square root of 813696379 is about 28525.3637838328. The cubic root of 813696379 is about 933.5855643829.

The spelling of 813696379 in words is "eight hundred thirteen million, six hundred ninety-six thousand, three hundred seventy-nine".