890855 has 8 divisors (see below), whose sum is σ = 1221792. Its totient is φ = 610848.

The previous prime is 890843. The next prime is 890861. The reversal of 890855 is 558098.

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

It is not a de Polignac number, because 890855 - 2¹² = 886759 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 25453 = 890855 / (8 + 9 + 0 + 8 + 5 + 5).

It is a Duffinian number.

It is a congruent number.

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, 12692 + ... + 12761.

It is an arithmetic number, because the mean of its divisors is an integer number (152724).

2⁸⁹⁰⁸⁵⁵ is an apocalyptic number.

890855 is a deficient number, since it is larger than the sum of its proper divisors (330937).

890855 is a wasteful number, since it uses less digits than its factorization.

890855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25465.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 890855 is about 943.8511535195. The cubic root of 890855 is about 96.2208097236.

The spelling of 890855 in words is "eight hundred ninety thousand, eight hundred fifty-five".