90845316 has 18 divisors (see below), whose sum is σ = 229636862. Its totient is φ = 30281760.

The previous prime is 90845303. The next prime is 90845341. The reversal of 90845316 is 61354809.

It can be written as a sum of positive squares in only one way, i.e., 61685316 + 29160000 = 7854^2 + 5400^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2523481 = 90845316 / (9 + 0 + 8 + 4 + 5 + 3 + 1 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1261705 + ... + 1261776.

Almost surely, 2^90845316 is an apocalyptic number.

It is an amenable number.

90845316 is an abundant number, since it is smaller than the sum of its proper divisors (138791546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90845316 is a wasteful number, since it uses less digits than its factorization.

90845316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523491 (or 2523486 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 90845316 is about 9531.2809212613. The cubic root of 90845316 is about 449.5391430000.

It can be divided in two parts, 9084 and 5316, that added together give a square (14400 = 120²).

The spelling of 90845316 in words is "ninety million, eight hundred forty-five thousand, three hundred sixteen".