890081173 has 4 divisors (see below), whose sum is σ = 890199148. Its totient is φ = 889963200.

The previous prime is 890081161. The next prime is 890081219. The reversal of 890081173 is 371180098.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 594481924 + 295599249 = 24382^2 + 17193^2 .

It is a cyclic number.

It is not a de Polignac number, because 890081173 - 2⁹ = 890080661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890081113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46836 + ... + 63037.

It is an arithmetic number, because the mean of its divisors is an integer number (222549787).

Almost surely, 2^890081173 is an apocalyptic number.

It is an amenable number.

890081173 is a deficient number, since it is larger than the sum of its proper divisors (117975).

890081173 is a wasteful number, since it uses less digits than its factorization.

890081173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117974.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 890081173 is about 29834.2282119045. The cubic root of 890081173 is about 961.9294142852.

The spelling of 890081173 in words is "eight hundred ninety million, eighty-one thousand, one hundred seventy-three".