9975387 has 8 divisors (see below), whose sum is σ = 13450320. Its totient is φ = 6575360.

The previous prime is 9975373. The next prime is 9975389. The reversal of 9975387 is 7835799.

9975387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9975387 - 2⁸ = 9975131 is a prime.

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, 18414 + ... + 18947.

It is an arithmetic number, because the mean of its divisors is an integer number (1681290).

Almost surely, 2^9975387 is an apocalyptic number.

9975387 is a deficient number, since it is larger than the sum of its proper divisors (3474933).

9975387 is a wasteful number, since it uses less digits than its factorization.

9975387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37453.

The product of its digits is 476280, while the sum is 48.

The square root of 9975387 is about 3158.3836055806. The cubic root of 9975387 is about 215.2665667838.

The spelling of 9975387 in words is "nine million, nine hundred seventy-five thousand, three hundred eighty-seven".