9879487 has 6 divisors (see below), whose sum is σ = 10427208. Its totient is φ = 9359172.

The previous prime is 9879479. The next prime is 9879521. The reversal of 9879487 is 7849789.

It is a happy number.

It is not a de Polignac number, because 9879487 - 2³ = 9879479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9879427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13323 + ... + 14044.

It is an arithmetic number, because the mean of its divisors is an integer number (1737868).

Almost surely, 2^9879487 is an apocalyptic number.

9879487 is a deficient number, since it is larger than the sum of its proper divisors (547721).

9879487 is a wasteful number, since it uses less digits than its factorization.

9879487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27405 (or 27386 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 52.

The square root of 9879487 is about 3143.1651245202. The cubic root of 9879487 is about 214.5745109474.

The spelling of 9879487 in words is "nine million, eight hundred seventy-nine thousand, four hundred eighty-seven".