823131332 has 24 divisors (see below), whose sum is σ = 1447891200. Its totient is φ = 409455296.

The previous prime is 823131311. The next prime is 823131343. The reversal of 823131332 is 233131328.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1144469 + ... + 1145187.

It is an arithmetic number, because the mean of its divisors is an integer number (60328800).

Almost surely, 2^823131332 is an apocalyptic number.

It is an amenable number.

823131332 is a deficient number, since it is larger than the sum of its proper divisors (624759868).

823131332 is a wasteful number, since it uses less digits than its factorization.

823131332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795 (or 1793 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 823131332 is about 28690.2654571198. The cubic root of 823131332 is about 937.1800700810.

The spelling of 823131332 in words is "eight hundred twenty-three million, one hundred thirty-one thousand, three hundred thirty-two".