813671332 has 24 divisors (see below), whose sum is σ = 1455672960. Its totient is φ = 397782240.

The previous prime is 813671297. The next prime is 813671401. The reversal of 813671332 is 233176318.

It is a super-2 number, since 2×813671332² = 1324122073037308448, which contains 22 as substring.

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, 295482 + ... + 298222.

It is an arithmetic number, because the mean of its divisors is an integer number (60653040).

Almost surely, 2^813671332 is an apocalyptic number.

It is an amenable number.

813671332 is a deficient number, since it is larger than the sum of its proper divisors (642001628).

813671332 is a wasteful number, since it uses less digits than its factorization.

813671332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371 (or 4369 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 813671332 is about 28524.9247501199. The cubic root of 813671332 is about 933.5759851516.

The spelling of 813671332 in words is "eight hundred thirteen million, six hundred seventy-one thousand, three hundred thirty-two".