812308347 has 6 divisors (see below), whose sum is σ = 1173334292. Its totient is φ = 541538892.

The previous prime is 812308333. The next prime is 812308363. The reversal of 812308347 is 743803218.

812308347 is a `hidden beast` number, since 8 + 1 + 2 + 308 + 347 = 666.

It is not a de Polignac number, because 812308347 - 2¹⁸ = 812046203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812308247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45128233 + ... + 45128250.

Almost surely, 2^812308347 is an apocalyptic number.

812308347 is a deficient number, since it is larger than the sum of its proper divisors (361025945).

812308347 is a wasteful number, since it uses less digits than its factorization.

812308347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90256489 (or 90256486 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 812308347 is about 28501.0236131968. The cubic root of 812308347 is about 933.0544145157.

The spelling of 812308347 in words is "eight hundred twelve million, three hundred eight thousand, three hundred forty-seven".