90008312 has 8 divisors (see below), whose sum is σ = 168765600. Its totient is φ = 45004152.

The previous prime is 90008299. The next prime is 90008327. The reversal of 90008312 is 21380009.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5625512 + ... + 5625527.

It is an arithmetic number, because the mean of its divisors is an integer number (21095700).

Almost surely, 2^90008312 is an apocalyptic number.

It is an amenable number.

90008312 is a deficient number, since it is larger than the sum of its proper divisors (78757288).

90008312 is a wasteful number, since it uses less digits than its factorization.

90008312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11251045 (or 11251041 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 90008312 is about 9487.2710512560. The cubic root of 90008312 is about 448.1542703185.

The spelling of 90008312 in words is "ninety million, eight thousand, three hundred twelve".