831609768 has 48 divisors (see below), whose sum is σ = 2285216640. Its totient is φ = 252002080.

The previous prime is 831609763. The next prime is 831609769. The reversal of 831609768 is 867906138.

It is not an unprimeable number, because it can be changed into a prime (831609763) 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, 140280 + ... + 146087.

It is an arithmetic number, because the mean of its divisors is an integer number (47608680).

Almost surely, 2^831609768 is an apocalyptic number.

831609768 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

831609768 is an abundant number, since it is smaller than the sum of its proper divisors (1453606872).

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

831609768 is a wasteful number, since it uses less digits than its factorization.

831609768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286398 (or 286383 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 831609768 is about 28837.6449801297. The cubic root of 831609768 is about 940.3868062533.

The spelling of 831609768 in words is "eight hundred thirty-one million, six hundred nine thousand, seven hundred sixty-eight".