810016173 has 32 divisors (see below), whose sum is σ = 1247433600. Its totient is φ = 519032448.

The previous prime is 810016157. The next prime is 810016201. The reversal of 810016173 is 371610018.

It is not a de Polignac number, because 810016173 - 2⁴ = 810016157 is a prime.

It is a super-2 number, since 2×810016173² = 1312252401043131858, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810016573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78033 + ... + 87801.

It is an arithmetic number, because the mean of its divisors is an integer number (38982300).

Almost surely, 2^810016173 is an apocalyptic number.

810016173 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

810016173 is a deficient number, since it is larger than the sum of its proper divisors (437417427).

810016173 is a wasteful number, since it uses less digits than its factorization.

810016173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9898 (or 9892 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 810016173 is about 28460.7830707449. The cubic root of 810016173 is about 932.1759558524.

The spelling of 810016173 in words is "eight hundred ten million, sixteen thousand, one hundred seventy-three".