813562423 has 2 divisors, whose sum is σ = 813562424. Its totient is φ = 813562422.

The previous prime is 813562403. The next prime is 813562447. The reversal of 813562423 is 324265318.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 813562423 - 2²⁹ = 276691511 is a prime.

It is a super-2 number, since 2×813562423² = 1323767632235261858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813562403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406781211 + 406781212.

It is an arithmetic number, because the mean of its divisors is an integer number (406781212).

Almost surely, 2^813562423 is an apocalyptic number.

813562423 is a deficient number, since it is larger than the sum of its proper divisors (1).

813562423 is an equidigital number, since it uses as much as digits as its factorization.

813562423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 813562423 is about 28523.0156715590. The cubic root of 813562423 is about 933.5343305917.

The spelling of 813562423 in words is "eight hundred thirteen million, five hundred sixty-two thousand, four hundred twenty-three".