890985 has 8 divisors (see below), whose sum is σ = 1425600. Its totient is φ = 475184.

The previous prime is 890969. The next prime is 890993. The reversal of 890985 is 589098.

890985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 890985 - 2⁴ = 890969 is a prime.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 890985.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29685 + ... + 29714.

It is an arithmetic number, because the mean of its divisors is an integer number (178200).

2⁸⁹⁰⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

890985 is a deficient number, since it is larger than the sum of its proper divisors (534615).

890985 is a wasteful number, since it uses less digits than its factorization.

890985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59407.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 890985 is about 943.9200177981. The cubic root of 890985 is about 96.2254899079.

The spelling of 890985 in words is "eight hundred ninety thousand, nine hundred eighty-five".