9009975 has 24 divisors (see below), whose sum is σ = 16044112. Its totient is φ = 4435200.

The previous prime is 9009961. The next prime is 9009977. The reversal of 9009975 is 5799009.

It is not a de Polignac number, because 9009975 - 2⁵ = 9009943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9009977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3646 + ... + 5595.

Almost surely, 2^9009975 is an apocalyptic number.

9009975 is a deficient number, since it is larger than the sum of its proper divisors (7034137).

9009975 is a wasteful number, since it uses less digits than its factorization.

9009975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9267 (or 9262 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 39.

The square root of 9009975 is about 3001.6620396041. The cubic root of 9009975 is about 208.0852014730.

The spelling of 9009975 in words is "nine million, nine thousand, nine hundred seventy-five".