9806979 has 16 divisors (see below), whose sum is σ = 16093952. Its totient is φ = 5172768.

The previous prime is 9806971. The next prime is 9806989. The reversal of 9806979 is 9796089.

It is a happy number.

It is not a de Polignac number, because 9806979 - 2³ = 9806971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9806971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17689 + ... + 18234.

It is an arithmetic number, because the mean of its divisors is an integer number (1005872).

Almost surely, 2^9806979 is an apocalyptic number.

9806979 is a deficient number, since it is larger than the sum of its proper divisors (6286973).

9806979 is a wasteful number, since it uses less digits than its factorization.

9806979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35946.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 9806979 is about 3131.6096500043. The cubic root of 9806979 is about 214.0482829885.

The spelling of 9806979 in words is "nine million, eight hundred six thousand, nine hundred seventy-nine".