90844216 has 16 divisors (see below), whose sum is σ = 172733040. Its totient is φ = 44782080.

The previous prime is 90844163. The next prime is 90844219. The reversal of 90844216 is 61244809.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90844219) 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, 79401 + ... + 80536.

It is an arithmetic number, because the mean of its divisors is an integer number (10795815).

Almost surely, 2^90844216 is an apocalyptic number.

It is an amenable number.

90844216 is a deficient number, since it is larger than the sum of its proper divisors (81888824).

90844216 is a wasteful number, since it uses less digits than its factorization.

90844216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160014 (or 160010 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 90844216 is about 9531.2232163558. The cubic root of 90844216 is about 449.5373285786.

The spelling of 90844216 in words is "ninety million, eight hundred forty-four thousand, two hundred sixteen".