9975285 has 32 divisors (see below), whose sum is σ = 18672000. Its totient is φ = 5038848.

The previous prime is 9975281. The next prime is 9975299. The reversal of 9975285 is 5825799.

It is a happy number.

It is not a de Polignac number, because 9975285 - 2² = 9975281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a d-powerful number, because it can be written as 9 + 9 + 7⁸ + 5² + 2²² + 8³ + 5⁶ .

It is a self number, because there is not a number n which added to its sum of digits gives 9975285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9975281) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 621 + ... + 4509.

It is an arithmetic number, because the mean of its divisors is an integer number (583500).

Almost surely, 2^9975285 is an apocalyptic number.

9975285 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9975285 is a deficient number, since it is larger than the sum of its proper divisors (8696715).

9975285 is a wasteful number, since it uses less digits than its factorization.

9975285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3922 (or 3916 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 9975285 is about 3158.3674580390. The cubic root of 9975285 is about 215.2658330691.

The spelling of 9975285 in words is "nine million, nine hundred seventy-five thousand, two hundred eighty-five".