9979587 has 12 divisors (see below), whose sum is σ = 14447160. Its totient is φ = 6638208.

The previous prime is 9979577. The next prime is 9979609. The reversal of 9979587 is 7859799.

It is not a de Polignac number, because 9979587 - 2¹⁸ = 9717443 is a prime.

9979587 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9979537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4339 + ... + 6227.

It is an arithmetic number, because the mean of its divisors is an integer number (1203930).

Almost surely, 2^9979587 is an apocalyptic number.

9979587 is a deficient number, since it is larger than the sum of its proper divisors (4467573).

9979587 is a wasteful number, since it uses less digits than its factorization.

9979587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482 (or 2479 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 54.

The square root of 9979587 is about 3159.0484326772. The cubic root of 9979587 is about 215.2967742241.

The spelling of 9979587 in words is "nine million, nine hundred seventy-nine thousand, five hundred eighty-seven".