90000912 has 40 divisors (see below), whose sum is σ = 233288640. Its totient is φ = 29898880.

The previous prime is 90000881. The next prime is 90000913. The reversal of 90000912 is 21900009.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (90000913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11914 + ... + 17942.

It is an arithmetic number, because the mean of its divisors is an integer number (5832216).

Almost surely, 2^90000912 is an apocalyptic number.

It is an amenable number.

90000912 is an abundant number, since it is smaller than the sum of its proper divisors (143287728).

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

90000912 is a wasteful number, since it uses less digits than its factorization.

90000912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6351 (or 6345 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 90000912 is about 9486.8810470038. The cubic root of 90000912 is about 448.1419883695.

The spelling of 90000912 in words is "ninety million, nine hundred twelve", and thus it is an aban number.