9900312 has 32 divisors (see below), whose sum is σ = 25422000. Its totient is φ = 3210624.

The previous prime is 9900301. The next prime is 9900343. The reversal of 9900312 is 2130099.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4687 + ... + 6462.

Almost surely, 2^9900312 is an apocalyptic number.

It is an amenable number.

9900312 is an abundant number, since it is smaller than the sum of its proper divisors (15521688).

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

9900312 is a wasteful number, since it uses less digits than its factorization.

9900312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11195 (or 11191 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 9900312 is about 3146.4761241745. The cubic root of 9900312 is about 214.7251725533.

The spelling of 9900312 in words is "nine million, nine hundred thousand, three hundred twelve".