812415884 has 36 divisors (see below), whose sum is σ = 1707209280. Its totient is φ = 336944160.

The previous prime is 812415881. The next prime is 812415893. The reversal of 812415884 is 488514218.

812415884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (812415881) 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, 60779 + ... + 72930.

It is an arithmetic number, because the mean of its divisors is an integer number (47422480).

Almost surely, 2^812415884 is an apocalyptic number.

It is an amenable number.

812415884 is an abundant number, since it is smaller than the sum of its proper divisors (894793396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812415884 is a wasteful number, since it uses less digits than its factorization.

812415884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133758 (or 133749 counting only the distinct ones).

The product of its digits is 81920, while the sum is 41.

The square root of 812415884 is about 28502.9100970410. The cubic root of 812415884 is about 933.0955866665.

The spelling of 812415884 in words is "eight hundred twelve million, four hundred fifteen thousand, eight hundred eighty-four".