812503892 has 12 divisors (see below), whose sum is σ = 1422982176. Its totient is φ = 405937560.

The previous prime is 812503891. The next prime is 812503903. The reversal of 812503892 is 298305218.

812503892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812503891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72734 + ... + 83157.

It is an arithmetic number, because the mean of its divisors is an integer number (118581848).

Almost surely, 2^812503892 is an apocalyptic number.

It is an amenable number.

812503892 is a deficient number, since it is larger than the sum of its proper divisors (610478284).

812503892 is a wasteful number, since it uses less digits than its factorization.

812503892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157198 (or 157196 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 812503892 is about 28504.4538975929. The cubic root of 812503892 is about 933.1292791438.

The spelling of 812503892 in words is "eight hundred twelve million, five hundred three thousand, eight hundred ninety-two".