9992992 has 12 divisors (see below), whose sum is σ = 19673766. Its totient is φ = 4996480.

The previous prime is 9992963. The next prime is 9993019. The reversal of 9992992 is 2992999.

It can be written as a sum of positive squares in only one way, i.e., 7420176 + 2572816 = 2724^2 + 1604^2 .

It is a super-2 number, since 2×9992992² = 199719778224128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156109 + ... + 156172.

Almost surely, 2^9992992 is an apocalyptic number.

It is an amenable number.

9992992 is a deficient number, since it is larger than the sum of its proper divisors (9680774).

9992992 is a wasteful number, since it uses less digits than its factorization.

9992992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312291 (or 312283 counting only the distinct ones).

The product of its digits is 236196, while the sum is 49.

The square root of 9992992 is about 3161.1694038757. The cubic root of 9992992 is about 215.3931296477.

The spelling of 9992992 in words is "nine million, nine hundred ninety-two thousand, nine hundred ninety-two".