813064888 has 16 divisors (see below), whose sum is σ = 1525050000. Its totient is φ = 406384896.

The previous prime is 813064883. The next prime is 813064921. The reversal of 813064888 is 888460318.

It is a super-2 number, since 2×813064888² = 1322149024196905088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813064883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7048 + ... + 40936.

It is an arithmetic number, because the mean of its divisors is an integer number (95315625).

Almost surely, 2^813064888 is an apocalyptic number.

It is an amenable number.

813064888 is a deficient number, since it is larger than the sum of its proper divisors (711985112).

813064888 is a wasteful number, since it uses less digits than its factorization.

813064888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36894 (or 36890 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 813064888 is about 28514.2926968214. The cubic root of 813064888 is about 933.3439904679.

The spelling of 813064888 in words is "eight hundred thirteen million, sixty-four thousand, eight hundred eighty-eight".