9009992 has 16 divisors (see below), whose sum is σ = 16982460. Its totient is φ = 4481344.

The previous prime is 9009991. The next prime is 9010003. The reversal of 9009992 is 2999009.

It can be written as a sum of positive squares in 2 ways, for example, as 7873636 + 1136356 = 2806^2 + 1066^2 .

It is not an unprimeable number, because it can be changed into a prime (9009991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283 + ... + 4434.

Almost surely, 2^9009992 is an apocalyptic number.

It is an amenable number.

9009992 is a deficient number, since it is larger than the sum of its proper divisors (7972468).

9009992 is a wasteful number, since it uses less digits than its factorization.

9009992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920 (or 5916 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 9009992 is about 3001.6648713672. The cubic root of 9009992 is about 208.0853323445.

It can be divided in two parts, 9009 and 992, that added together give a palindrome (10001).

The spelling of 9009992 in words is "nine million, nine thousand, nine hundred ninety-two".