813676343 has 2 divisors, whose sum is σ = 813676344. Its totient is φ = 813676342.

The previous prime is 813676337. The next prime is 813676373. The reversal of 813676343 is 343676318.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 813676343 - 2⁴ = 813676327 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 813676343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813676333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406838171 + 406838172.

It is an arithmetic number, because the mean of its divisors is an integer number (406838172).

Almost surely, 2^813676343 is an apocalyptic number.

813676343 is a deficient number, since it is larger than the sum of its proper divisors (1).

813676343 is an equidigital number, since it uses as much as digits as its factorization.

813676343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 41.

The square root of 813676343 is about 28525.0125854486. The cubic root of 813676343 is about 933.5779016255.

The spelling of 813676343 in words is "eight hundred thirteen million, six hundred seventy-six thousand, three hundred forty-three".