890169 has 32 divisors (see below), whose sum is σ = 1505280. Its totient is φ = 456192.

The previous prime is 890161. The next prime is 890177. The reversal of 890169 is 961098.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (890161) and next prime (890177).

It is not a de Polignac number, because 890169 - 2³ = 890161 is a prime.

It is a super-2 number, since 2×890169² = 1584801697122, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (890161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9129 + ... + 9225.

It is an arithmetic number, because the mean of its divisors is an integer number (47040).

2⁸⁹⁰¹⁶⁹ is an apocalyptic number.

It is an amenable number.

890169 is a deficient number, since it is larger than the sum of its proper divisors (615111).

890169 is a wasteful number, since it uses less digits than its factorization.

890169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 890169 is about 943.4876787749. The cubic root of 890169 is about 96.1961052072.

The spelling of 890169 in words is "eight hundred ninety thousand, one hundred sixty-nine".