9975489 has 8 divisors (see below), whose sum is σ = 13368960. Its totient is φ = 6616176.

The previous prime is 9975461. The next prime is 9975529. The reversal of 9975489 is 9845799.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9975489 - 2⁵ = 9975457 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

9975489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9975389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7849 + ... + 9030.

It is an arithmetic number, because the mean of its divisors is an integer number (1671120).

Almost surely, 2^9975489 is an apocalyptic number.

It is an amenable number.

9975489 is a deficient number, since it is larger than the sum of its proper divisors (3393471).

9975489 is a wasteful number, since it uses less digits than its factorization.

9975489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17079.

The product of its digits is 816480, while the sum is 51.

The square root of 9975489 is about 3158.3997530395. The cubic root of 9975489 is about 215.2673004935.

The spelling of 9975489 in words is "nine million, nine hundred seventy-five thousand, four hundred eighty-nine".