813873068 has 12 divisors (see below), whose sum is σ = 1438961832.
Its totient is φ = 402741120.
The previous prime is 813873007. The next prime is 813873077. The reversal of 813873068 is 860378318.
It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048418 + ... + 1049193.
It is an arithmetic number, because the mean of its divisors is an integer number (119913486).
Almost surely, 2813873068 is an apocalyptic number.
It is an amenable number.
813873068 is a deficient number, since it is larger than the sum of its proper divisors (625088764).
813873068 is a wasteful number, since it uses less digits than its factorization.
813873068 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2097712 (or 2097710 counting only the distinct ones).
The product of its (nonzero) digits is 193536, while the sum is 44.
The square root of 813873068 is about 28528.4606664993.
The cubic root of 813873068 is about 933.6531335507.
The spelling of 813873068 in words is "eight hundred thirteen million, eight hundred seventy-three thousand, sixty-eight".