811506372 has 24 divisors (see below), whose sum is σ = 1895287296. Its totient is φ = 270248928.

The previous prime is 811506349. The next prime is 811506379. The reversal of 811506372 is 273605118.

It is not an unprimeable number, because it can be changed into a prime (811506379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18063 + ... + 44150.

It is an arithmetic number, because the mean of its divisors is an integer number (78970304).

Almost surely, 2^811506372 is an apocalyptic number.

It is an amenable number.

811506372 is an abundant number, since it is smaller than the sum of its proper divisors (1083780924).

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

811506372 is a wasteful number, since it uses less digits than its factorization.

811506372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63307 (or 63305 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 811506372 is about 28486.9509073892. The cubic root of 811506372 is about 932.7472517215.

The spelling of 811506372 in words is "eight hundred eleven million, five hundred six thousand, three hundred seventy-two".