90844 has 12 divisors (see below), whose sum is σ = 171304. Its totient is φ = 41904.

The previous prime is 90841. The next prime is 90847. The reversal of 90844 is 44809.

90844 = T₁₁₇ + T₁₁₈ + ... + T₁₂₈.

It is an interprime number because it is at equal distance from previous prime (90841) and next prime (90847).

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822 + ... + 925.

2⁹⁰⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

90844 is a deficient number, since it is larger than the sum of its proper divisors (80460).

90844 is a wasteful number, since it uses less digits than its factorization.

90844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 90844 is about 301.4033841880. The cubic root of 90844 is about 44.9536972291.

The spelling of 90844 in words is "ninety thousand, eight hundred forty-four".