802117892 has 12 divisors (see below), whose sum is σ = 1406077596. Its totient is φ = 400381440.

The previous prime is 802117859. The next prime is 802117907. The reversal of 802117892 is 298711208.

It can be written as a sum of positive squares in 2 ways, for example, as 588256516 + 213861376 = 24254^2 + 14624^2 .

It is a super-2 number, since 2×802117892² = 1286786225333047328, which contains 22 as substring.

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, 166709 + ... + 171452.

It is an arithmetic number, because the mean of its divisors is an integer number (117173133).

Almost surely, 2^802117892 is an apocalyptic number.

It is an amenable number.

802117892 is a deficient number, since it is larger than the sum of its proper divisors (603959704).

802117892 is a wasteful number, since it uses less digits than its factorization.

802117892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338758 (or 338756 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 802117892 is about 28321.6858961468. The cubic root of 802117892 is about 929.1362435328.

The spelling of 802117892 in words is "eight hundred two million, one hundred seventeen thousand, eight hundred ninety-two".