812314843 has 2 divisors, whose sum is σ = 812314844. Its totient is φ = 812314842.

The previous prime is 812314831. The next prime is 812314861. The reversal of 812314843 is 348413218.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 812314843 - 2²¹ = 810217691 is a prime.

It is a super-2 number, since 2×812314843² = 1319710808316229298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 812314799 and 812314808.

It is not a weakly prime, because it can be changed into another prime (812314883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406157421 + 406157422.

It is an arithmetic number, because the mean of its divisors is an integer number (406157422).

Almost surely, 2^812314843 is an apocalyptic number.

812314843 is a deficient number, since it is larger than the sum of its proper divisors (1).

812314843 is an equidigital number, since it uses as much as digits as its factorization.

812314843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 34.

The square root of 812314843 is about 28501.1375737882. The cubic root of 812314843 is about 933.0569017097.

The spelling of 812314843 in words is "eight hundred twelve million, three hundred fourteen thousand, eight hundred forty-three".