801795856 has 15 divisors (see below), whose sum is σ = 1553698951. Its totient is φ = 400841296.

The previous prime is 801795821. The next prime is 801795881. The reversal of 801795856 is 658597108.

The square root of 801795856 is 28316.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 109725 + ... + 116803.

Almost surely, 2^801795856 is an apocalyptic number.

801795856 is the 28316-th square number.

It is an amenable number.

801795856 is a deficient number, since it is larger than the sum of its proper divisors (751903095).

801795856 is an frugal number, since it uses more digits than its factorization.

801795856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14166 (or 7081 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 49.

The cubic root of 801795856 is about 929.0118830223.

Multiplying 801795856 by its sum of digits (49), we get a square (39287996944 = 198212²).

The spelling of 801795856 in words is "eight hundred one million, seven hundred ninety-five thousand, eight hundred fifty-six".