9979908 has 12 divisors (see below), whose sum is σ = 23286480. Its totient is φ = 3326632.

The previous prime is 9979897. The next prime is 9979927. The reversal of 9979908 is 8099799.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415818 + ... + 415841.

It is an arithmetic number, because the mean of its divisors is an integer number (1940540).

Almost surely, 2^9979908 is an apocalyptic number.

It is an amenable number.

9979908 is an abundant number, since it is smaller than the sum of its proper divisors (13306572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9979908 is a wasteful number, since it uses less digits than its factorization.

9979908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831666 (or 831664 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 51.

The square root of 9979908 is about 3159.0992387071. The cubic root of 9979908 is about 215.2990825869.

The spelling of 9979908 in words is "nine million, nine hundred seventy-nine thousand, nine hundred eight".