812315798 has 16 divisors (see below), whose sum is σ = 1393891584. Its totient is φ = 347797800.

The previous prime is 812315761. The next prime is 812315809. The reversal of 812315798 is 897513218.

812315798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12890 + ... + 42317.

It is an arithmetic number, because the mean of its divisors is an integer number (87118224).

Almost surely, 2^812315798 is an apocalyptic number.

812315798 is a deficient number, since it is larger than the sum of its proper divisors (581575786).

812315798 is a wasteful number, since it uses less digits than its factorization.

812315798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56267.

The product of its digits is 120960, while the sum is 44.

The square root of 812315798 is about 28501.1543275005. The cubic root of 812315798 is about 933.0572673598.

The spelling of 812315798 in words is "eight hundred twelve million, three hundred fifteen thousand, seven hundred ninety-eight".