812740904 has 16 divisors (see below), whose sum is σ = 1533016800. Its totient is φ = 403936432.

The previous prime is 812740891. The next prime is 812740931. The reversal of 812740904 is 409047218.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302834 + ... + 305505.

It is an arithmetic number, because the mean of its divisors is an integer number (95813550).

Almost surely, 2^812740904 is an apocalyptic number.

It is an amenable number.

812740904 is a deficient number, since it is larger than the sum of its proper divisors (720275896).

812740904 is a wasteful number, since it uses less digits than its factorization.

812740904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608512 (or 608508 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 812740904 is about 28508.6110499968. The cubic root of 812740904 is about 933.2200033596.

The spelling of 812740904 in words is "eight hundred twelve million, seven hundred forty thousand, nine hundred four".