812387200 has 48 divisors (see below), whose sum is σ = 2006858160. Its totient is φ = 324953600.

The previous prime is 812387197. The next prime is 812387201. The reversal of 812387200 is 2783218.

812387200 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812387201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123736 + ... + 130135.

It is an arithmetic number, because the mean of its divisors is an integer number (41809545).

Almost surely, 2^812387200 is an apocalyptic number.

812387200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

812387200 is an abundant number, since it is smaller than the sum of its proper divisors (1194470960).

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

812387200 is a wasteful number, since it uses less digits than its factorization.

812387200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253895 (or 253878 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 812387200 is about 28502.4069159080. The cubic root of 812387200 is about 933.0846049229.

The spelling of 812387200 in words is "eight hundred twelve million, three hundred eighty-seven thousand, two hundred".