890885 has 16 divisors (see below), whose sum is σ = 1161216. Its totient is φ = 653568.

The previous prime is 890881. The next prime is 890887. The reversal of 890885 is 588098.

It is a cyclic number.

It is not a de Polignac number, because 890885 - 2² = 890881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 890885.

It is not an unprimeable number, because it can be changed into a prime (890881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3884 + ... + 4106.

It is an arithmetic number, because the mean of its divisors is an integer number (72576).

2⁸⁹⁰⁸⁸⁵ is an apocalyptic number.

890885 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

890885 is a deficient number, since it is larger than the sum of its proper divisors (270331).

890885 is a wasteful number, since it uses less digits than its factorization.

890885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 890885 is about 943.8670457220. The cubic root of 890885 is about 96.2218898065.

The spelling of 890885 in words is "eight hundred ninety thousand, eight hundred eighty-five".