9407990 has 32 divisors (see below), whose sum is σ = 17794944. Its totient is φ = 3576960.

The previous prime is 9407971. The next prime is 9408011. The reversal of 9407990 is 997049.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17120 + ... + 17660.

It is an arithmetic number, because the mean of its divisors is an integer number (556092).

Almost surely, 2^9407990 is an apocalyptic number.

9407990 is a deficient number, since it is larger than the sum of its proper divisors (8386954).

9407990 is a wasteful number, since it uses less digits than its factorization.

9407990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 9407990 is about 3067.2446919018. The cubic root of 9407990 is about 211.1052087198.

The spelling of 9407990 in words is "nine million, four hundred seven thousand, nine hundred ninety".