90885312 has 84 divisors (see below), whose sum is σ = 297734736. Its totient is φ = 25966080.

The previous prime is 90885307. The next prime is 90885317. The reversal of 90885312 is 21358809.

It is an interprime number because it is at equal distance from previous prime (90885307) and next prime (90885317).

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (90885317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7239 + ... + 15302.

Almost surely, 2^90885312 is an apocalyptic number.

It is an amenable number.

90885312 is an abundant number, since it is smaller than the sum of its proper divisors (206849424).

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

90885312 is a wasteful number, since it uses less digits than its factorization.

90885312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22566 (or 22553 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 90885312 is about 9533.3788343902. The cubic root of 90885312 is about 449.6051054160.

It can be divided in two parts, 9088 and 5312, that added together give a square (14400 = 120²).

The spelling of 90885312 in words is "ninety million, eight hundred eighty-five thousand, three hundred twelve".