813696343 has 2 divisors, whose sum is σ = 813696344. Its totient is φ = 813696342.

The previous prime is 813696329. The next prime is 813696349. The reversal of 813696343 is 343696318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 813696343 - 2²⁵ = 780141911 is a prime.

It is a super-2 number, since 2×813696343² = 1324203477223147298, 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 813696343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813696349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406848171 + 406848172.

It is an arithmetic number, because the mean of its divisors is an integer number (406848172).

Almost surely, 2^813696343 is an apocalyptic number.

813696343 is a deficient number, since it is larger than the sum of its proper divisors (1).

813696343 is an equidigital number, since it uses as much as digits as its factorization.

813696343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 43.

The square root of 813696343 is about 28525.3631528154. The cubic root of 813696343 is about 933.5855506148.

The spelling of 813696343 in words is "eight hundred thirteen million, six hundred ninety-six thousand, three hundred forty-three".