813988324 has 12 divisors (see below), whose sum is σ = 1427787648. Its totient is φ = 406049000.

The previous prime is 813988319. The next prime is 813988333. The reversal of 813988324 is 423889318.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234352 + ... + 237799.

It is an arithmetic number, because the mean of its divisors is an integer number (118982304).

Almost surely, 2^813988324 is an apocalyptic number.

It is an amenable number.

813988324 is a deficient number, since it is larger than the sum of its proper divisors (613799324).

813988324 is a wasteful number, since it uses less digits than its factorization.

813988324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472586 (or 472584 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 813988324 is about 28530.4806128463. The cubic root of 813988324 is about 933.6972043240.

The spelling of 813988324 in words is "eight hundred thirteen million, nine hundred eighty-eight thousand, three hundred twenty-four".