9975579 has 8 divisors (see below), whose sum is σ = 13331472. Its totient is φ = 6635040.

The previous prime is 9975569. The next prime is 9975593. The reversal of 9975579 is 9755799.

It is a happy number.

9975579 is digitally balanced in base 2 and base 4, because in such bases 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 not a de Polignac number, because 9975579 - 2⁵ = 9975547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9975529) 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, 2224 + ... + 4989.

It is an arithmetic number, because the mean of its divisors is an integer number (1666434).

Almost surely, 2^9975579 is an apocalyptic number.

9975579 is a deficient number, since it is larger than the sum of its proper divisors (3355893).

9975579 is a wasteful number, since it uses less digits than its factorization.

9975579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7677.

The product of its digits is 893025, while the sum is 51.

The square root of 9975579 is about 3158.4140007288. The cubic root of 9975579 is about 215.2679478803.

The spelling of 9975579 in words is "nine million, nine hundred seventy-five thousand, five hundred seventy-nine".