9990007 has 4 divisors (see below), whose sum is σ = 10334520. Its totient is φ = 9645496.

The previous prime is 9989957. The next prime is 9990017. The reversal of 9990007 is 7000999.

9990007 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7000999 = 59 ⋅118661.

It is a cyclic number.

It is not a de Polignac number, because 9990007 - 2⁷ = 9989879 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 172213 + ... + 172270.

It is an arithmetic number, because the mean of its divisors is an integer number (2583630).

Almost surely, 2^9990007 is an apocalyptic number.

9990007 is a deficient number, since it is larger than the sum of its proper divisors (344513).

9990007 is a wasteful number, since it uses less digits than its factorization.

9990007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344512.

The product of its (nonzero) digits is 5103, while the sum is 34.

The square root of 9990007 is about 3160.6972332066. The cubic root of 9990007 is about 215.3716808657.

The spelling of 9990007 in words is "nine million, nine hundred ninety thousand, seven".