9886979 has 6 divisors (see below), whose sum is σ = 10503084. Its totient is φ = 9305120.

The previous prime is 9886957. The next prime is 9886993. The reversal of 9886979 is 9796889.

9886979 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9886979 - 2¹² = 9882883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9886939) 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, 16817 + ... + 17394.

It is an arithmetic number, because the mean of its divisors is an integer number (1750514).

Almost surely, 2^9886979 is an apocalyptic number.

9886979 is a deficient number, since it is larger than the sum of its proper divisors (616105).

9886979 is a wasteful number, since it uses less digits than its factorization.

9886979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34245 (or 34228 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 56.

The square root of 9886979 is about 3144.3566909624. The cubic root of 9886979 is about 214.6287373136.

The spelling of 9886979 in words is "nine million, eight hundred eighty-six thousand, nine hundred seventy-nine".