90856 has 16 divisors (see below), whose sum is σ = 175140. Its totient is φ = 44160.

The previous prime is 90847. The next prime is 90863. The reversal of 90856 is 65809.

It can be written as a sum of positive squares in 2 ways, for example, as 72900 + 17956 = 270^2 + 134^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190 + ... + 466.

2⁹⁰⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

90856 is a deficient number, since it is larger than the sum of its proper divisors (84284).

90856 is a wasteful number, since it uses less digits than its factorization.

90856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 90856 is about 301.4232904074. The cubic root of 90856 is about 44.9556765218.

It can be divided in two parts, 90 and 856, that added together give a triangular number (946 = T₄₃).

The spelling of 90856 in words is "ninety thousand, eight hundred fifty-six".