812344347 has 12 divisors (see below), whose sum is σ = 1200674904. Its totient is φ = 528968160.

The previous prime is 812344343. The next prime is 812344349. The reversal of 812344347 is 743443218.

812344347 is a `hidden beast` number, since 81 + 234 + 4 + 347 = 666.

It is not a de Polignac number, because 812344347 - 2² = 812344343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (812344343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1049154 + ... + 1049927.

It is an arithmetic number, because the mean of its divisors is an integer number (100056242).

Almost surely, 2^812344347 is an apocalyptic number.

812344347 is a deficient number, since it is larger than the sum of its proper divisors (388330557).

812344347 is a wasteful number, since it uses less digits than its factorization.

812344347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099130 (or 2099127 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 812344347 is about 28501.6551624638. The cubic root of 812344347 is about 933.0681980594.

The spelling of 812344347 in words is "eight hundred twelve million, three hundred forty-four thousand, three hundred forty-seven".