9579987 has 12 divisors (see below), whose sum is σ = 13912704. Its totient is φ = 6352080.

The previous prime is 9579967. The next prime is 9580001. The reversal of 9579987 is 7899759.

9579987 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 not a de Polignac number, because 9579987 - 2⁶ = 9579923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9579907) 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, 1068 + ... + 4505.

It is an arithmetic number, because the mean of its divisors is an integer number (1159392).

Almost surely, 2^9579987 is an apocalyptic number.

9579987 is a deficient number, since it is larger than the sum of its proper divisors (4332717).

9579987 is a wasteful number, since it uses less digits than its factorization.

9579987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5770 (or 5767 counting only the distinct ones).

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

The square root of 9579987 is about 3095.1554080530. The cubic root of 9579987 is about 212.3839236877.

It can be divided in two parts, 957 and 9987, that multiplied together give a palindrome (9557559).

The spelling of 9579987 in words is "nine million, five hundred seventy-nine thousand, nine hundred eighty-seven".