9992975 has 6 divisors (see below), whose sum is σ = 12391320. Its totient is φ = 7994360.

The previous prime is 9992963. The next prime is 9993019. The reversal of 9992975 is 5792999.

It is not a de Polignac number, because 9992975 - 2¹² = 9988879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 199835 + ... + 199884.

It is an arithmetic number, because the mean of its divisors is an integer number (2065220).

Almost surely, 2^9992975 is an apocalyptic number.

9992975 is a deficient number, since it is larger than the sum of its proper divisors (2398345).

9992975 is a wasteful number, since it uses less digits than its factorization.

9992975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399729 (or 399724 counting only the distinct ones).

The product of its digits is 459270, while the sum is 50.

The square root of 9992975 is about 3161.1667149962. The cubic root of 9992975 is about 215.3930075060.

The spelling of 9992975 in words is "nine million, nine hundred ninety-two thousand, nine hundred seventy-five".