9979479 has 12 divisors (see below), whose sum is σ = 14470456. Its totient is φ = 6627312.

The previous prime is 9979471. The next prime is 9979511. The reversal of 9979479 is 9749799.

It is not a de Polignac number, because 9979479 - 2³ = 9979471 is a prime.

It is a super-2 number, since 2×9979479² = 199180002222882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9979471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 492 + ... + 4494.

Almost surely, 2^9979479 is an apocalyptic number.

9979479 is a deficient number, since it is larger than the sum of its proper divisors (4490977).

9979479 is a wasteful number, since it uses less digits than its factorization.

9979479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286 (or 4283 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 54.

The square root of 9979479 is about 3159.0313388759. The cubic root of 9979479 is about 215.2959975675.

The spelling of 9979479 in words is "nine million, nine hundred seventy-nine thousand, four hundred seventy-nine".