9979005 has 8 divisors (see below), whose sum is σ = 15966432. Its totient is φ = 5322128.

The previous prime is 9978989. The next prime is 9979019. The reversal of 9979005 is 5009799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9979005 - 2⁴ = 9978989 is a prime.

It is a super-3 number, since 3×9979005³ (a number of 22 digits) contains 333 as substring.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 332619 + ... + 332648.

It is an arithmetic number, because the mean of its divisors is an integer number (1995804).

Almost surely, 2^9979005 is an apocalyptic number.

It is an amenable number.

9979005 is a deficient number, since it is larger than the sum of its proper divisors (5987427).

9979005 is a wasteful number, since it uses less digits than its factorization.

9979005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665275.

The product of its (nonzero) digits is 25515, while the sum is 39.

The square root of 9979005 is about 3158.9563149876. The cubic root of 9979005 is about 215.2925888418.

The spelling of 9979005 in words is "nine million, nine hundred seventy-nine thousand, five".