9990012 has 24 divisors (see below), whose sum is σ = 23363536. Its totient is φ = 3322368.

The previous prime is 9989957. The next prime is 9990017. The reversal of 9990012 is 2100999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9990017) 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, 7458 + ... + 8694.

Almost surely, 2^9990012 is an apocalyptic number.

It is an amenable number.

9990012 is an abundant number, since it is smaller than the sum of its proper divisors (13373524).

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

9990012 is a wasteful number, since it uses less digits than its factorization.

9990012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917 (or 1915 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 9990012 is about 3160.6980241712. The cubic root of 9990012 is about 215.3717167969.

The spelling of 9990012 in words is "nine million, nine hundred ninety thousand, twelve".