810052173 has 18 divisors (see below), whose sum is σ = 1361108814. Its totient is φ = 462886704.

The previous prime is 810052163. The next prime is 810052181. The reversal of 810052173 is 371250018.

It can be written as a sum of positive squares in only one way, i.e., 788317929 + 21734244 = 28077^2 + 4662^2 .

It is not a de Polignac number, because 810052173 - 2⁶ = 810052109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810052153) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 917986 + ... + 918867.

Almost surely, 2^810052173 is an apocalyptic number.

It is an amenable number.

810052173 is a deficient number, since it is larger than the sum of its proper divisors (551056641).

810052173 is a wasteful number, since it uses less digits than its factorization.

810052173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836873 (or 1836863 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 810052173 is about 28461.4155129361. The cubic root of 810052173 is about 932.1897653863.

The spelling of 810052173 in words is "eight hundred ten million, fifty-two thousand, one hundred seventy-three".