812344067 has 2 divisors, whose sum is σ = 812344068. Its totient is φ = 812344066.

The previous prime is 812344063. The next prime is 812344079. The reversal of 812344067 is 760443218.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 812344067 - 2² = 812344063 is a prime.

It is not a weakly prime, because it can be changed into another prime (812344063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406172033 + 406172034.

It is an arithmetic number, because the mean of its divisors is an integer number (406172034).

Almost surely, 2^812344067 is an apocalyptic number.

812344067 is a deficient number, since it is larger than the sum of its proper divisors (1).

812344067 is an equidigital number, since it uses as much as digits as its factorization.

812344067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 812344067 is about 28501.6502504680. The cubic root of 812344067 is about 933.0680908556.

The spelling of 812344067 in words is "eight hundred twelve million, three hundred forty-four thousand, sixty-seven".