890193 has 4 divisors (see below), whose sum is σ = 1186928. Its totient is φ = 593460.

The previous prime is 890177. The next prime is 890221. The reversal of 890193 is 391098.

It is a happy number.

890193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 890193 - 2⁴ = 890177 is a prime.

It is a D-number.

It is the 944-th Hogben number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 890193.

It is not an unprimeable number, because it can be changed into a prime (890893) by changing a digit.

It is a nontrivial repunit in base 943.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148363 + ... + 148368.

It is an arithmetic number, because the mean of its divisors is an integer number (296732).

2⁸⁹⁰¹⁹³ is an apocalyptic number.

It is an amenable number.

890193 is a deficient number, since it is larger than the sum of its proper divisors (296735).

890193 is a wasteful number, since it uses less digits than its factorization.

890193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296734.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 890193 is about 943.5003974562. The cubic root of 890193 is about 96.1969697194.

The spelling of 890193 in words is "eight hundred ninety thousand, one hundred ninety-three".