9959679 has 20 divisors (see below), whose sum is σ = 15246000. Its totient is φ = 6475680.

The previous prime is 9959659. The next prime is 9959683. The reversal of 9959679 is 9769599.

It is not a de Polignac number, because 9959679 - 2⁹ = 9959167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9959639) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1822 + ... + 4820.

It is an arithmetic number, because the mean of its divisors is an integer number (762300).

Almost surely, 2^9959679 is an apocalyptic number.

9959679 is a deficient number, since it is larger than the sum of its proper divisors (5286321).

9959679 is a wasteful number, since it uses less digits than its factorization.

9959679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052 (or 3043 counting only the distinct ones).

The product of its digits is 1377810, while the sum is 54.

The square root of 9959679 is about 3155.8959108310. The cubic root of 9959679 is about 215.1535157427.

The spelling of 9959679 in words is "nine million, nine hundred fifty-nine thousand, six hundred seventy-nine".