813032988 has 24 divisors (see below), whose sum is σ = 1899772560. Its totient is φ = 270625920.

The previous prime is 813032981. The next prime is 813033019. The reversal of 813032988 is 889230318.

813032988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×813032988² = 1322045279152416288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813032981) 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, 39273 + ... + 56288.

It is an arithmetic number, because the mean of its divisors is an integer number (79157190).

Almost surely, 2^813032988 is an apocalyptic number.

It is an amenable number.

813032988 is an abundant number, since it is smaller than the sum of its proper divisors (1086739572).

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

813032988 is a wasteful number, since it uses less digits than its factorization.

813032988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96277 (or 96275 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 813032988 is about 28513.7333227342. The cubic root of 813032988 is about 933.3317839543.

The spelling of 813032988 in words is "eight hundred thirteen million, thirty-two thousand, nine hundred eighty-eight".