9979019 has 2 divisors, whose sum is σ = 9979020. Its totient is φ = 9979018.

The previous prime is 9978989. The next prime is 9979037. The reversal of 9979019 is 9109799.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9979019 is a prime.

It is a super-2 number, since 2×9979019² = 199161640404722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9979819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4989509 + 4989510.

It is an arithmetic number, because the mean of its divisors is an integer number (4989510).

Almost surely, 2^9979019 is an apocalyptic number.

9979019 is a deficient number, since it is larger than the sum of its proper divisors (1).

9979019 is an equidigital number, since it uses as much as digits as its factorization.

9979019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45927, while the sum is 44.

The square root of 9979019 is about 3158.9585309086. The cubic root of 9979019 is about 215.2926895231.

The spelling of 9979019 in words is "nine million, nine hundred seventy-nine thousand, nineteen".