812344343 has 2 divisors, whose sum is σ = 812344344. Its totient is φ = 812344342.

The previous prime is 812344333. The next prime is 812344349. The reversal of 812344343 is 343443218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812344343 - 2⁸ = 812344087 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812344349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406172171 + 406172172.

It is an arithmetic number, because the mean of its divisors is an integer number (406172172).

Almost surely, 2^812344343 is an apocalyptic number.

812344343 is a deficient number, since it is larger than the sum of its proper divisors (1).

812344343 is an equidigital number, since it uses as much as digits as its factorization.

812344343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 32.

The square root of 812344343 is about 28501.6550922924. The cubic root of 812344343 is about 933.0681965279.

The spelling of 812344343 in words is "eight hundred twelve million, three hundred forty-four thousand, three hundred forty-three".