800671725 has 36 divisors (see below), whose sum is σ = 1638965536. Its totient is φ = 366020640.

The previous prime is 800671681. The next prime is 800671733. The reversal of 800671725 is 527176008.

It is not a de Polignac number, because 800671725 - 2¹⁰ = 800670701 is a prime.

It is a super-2 number, since 2×800671725² = 1282150422428951250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 800671725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 252607 + ... + 255756.

Almost surely, 2^800671725 is an apocalyptic number.

It is an amenable number.

800671725 is an abundant number, since it is smaller than the sum of its proper divisors (838293811).

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

800671725 is a wasteful number, since it uses less digits than its factorization.

800671725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508386 (or 508378 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 800671725 is about 28296.1432884413. The cubic root of 800671725 is about 928.5775166408.

The spelling of 800671725 in words is "eight hundred million, six hundred seventy-one thousand, seven hundred twenty-five".