813250770 has 32 divisors (see below), whose sum is σ = 2019107520. Its totient is φ = 209388480.

The previous prime is 813250693. The next prime is 813250819. The reversal of 813250770 is 77052318.

It is a super-2 number, since 2×813250770² = 1322753629811185800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466516 + ... + 468255.

It is an arithmetic number, because the mean of its divisors is an integer number (63097110).

Almost surely, 2^813250770 is an apocalyptic number.

813250770 is an abundant number, since it is smaller than the sum of its proper divisors (1205856750).

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

813250770 is a wasteful number, since it uses less digits than its factorization.

813250770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934810.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 813250770 is about 28517.5519636592. The cubic root of 813250770 is about 933.4151117403.

The spelling of 813250770 in words is "eight hundred thirteen million, two hundred fifty thousand, seven hundred seventy".