800973855 has 24 divisors (see below), whose sum is σ = 1514569680. Its totient is φ = 388350720.

The previous prime is 800973809. The next prime is 800973869. The reversal of 800973855 is 558379008.

It is not a de Polignac number, because 800973855 - 2¹⁰ = 800972831 is a prime.

It is a super-2 number, since 2×800973855² = 1283118232787122050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 800973855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 808570 + ... + 809559.

It is an arithmetic number, because the mean of its divisors is an integer number (63107070).

Almost surely, 2^800973855 is an apocalyptic number.

800973855 is a deficient number, since it is larger than the sum of its proper divisors (713595825).

800973855 is a wasteful number, since it uses less digits than its factorization.

800973855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618151 (or 1618148 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 800973855 is about 28301.4814983244. The cubic root of 800973855 is about 928.6943001846.

The spelling of 800973855 in words is "eight hundred million, nine hundred seventy-three thousand, eight hundred fifty-five".