812384072 has 16 divisors (see below), whose sum is σ = 1538010240. Its totient is φ = 402248016.

The previous prime is 812384071. The next prime is 812384093. The reversal of 812384072 is 270483218.

It is not an unprimeable number, because it can be changed into a prime (812384071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492128 + ... + 493775.

It is an arithmetic number, because the mean of its divisors is an integer number (96125640).

Almost surely, 2^812384072 is an apocalyptic number.

It is an amenable number.

812384072 is a deficient number, since it is larger than the sum of its proper divisors (725626168).

812384072 is a wasteful number, since it uses less digits than its factorization.

812384072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986012 (or 986008 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 812384072 is about 28502.3520432964. The cubic root of 812384072 is about 933.0834073444.

The spelling of 812384072 in words is "eight hundred twelve million, three hundred eighty-four thousand, seventy-two".