9739979 has 2 divisors, whose sum is σ = 9739980. Its totient is φ = 9739978.

The previous prime is 9739949. The next prime is 9740009. The reversal of 9739979 is 9799379.

It is a balanced prime because it is at equal distance from previous prime (9739949) and next prime (9740009).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9739979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9739979.

It is not a weakly prime, because it can be changed into another prime (9739909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4869989 + 4869990.

It is an arithmetic number, because the mean of its divisors is an integer number (4869990).

Almost surely, 2^9739979 is an apocalyptic number.

9739979 is a deficient number, since it is larger than the sum of its proper divisors (1).

9739979 is an equidigital number, since it uses as much as digits as its factorization.

9739979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 964467, while the sum is 53.

The square root of 9739979 is about 3120.8939424466. The cubic root of 9739979 is about 213.5597187177.

The spelling of 9739979 in words is "nine million, seven hundred thirty-nine thousand, nine hundred seventy-nine".