16675979 has 2 divisors, whose sum is σ = 16675980. Its totient is φ = 16675978.

The previous prime is 16675961. The next prime is 16675999. The reversal of 16675979 is 97957661.

It is a weak prime.

It is an emirp because it is prime and its reverse (97957661) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16675979 is a prime.

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 (16675999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8337989 + 8337990.

It is an arithmetic number, because the mean of its divisors is an integer number (8337990).

Almost surely, 2^16675979 is an apocalyptic number.

16675979 is a deficient number, since it is larger than the sum of its proper divisors (1).

16675979 is an equidigital number, since it uses as much as digits as its factorization.

16675979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 714420, while the sum is 50.

The square root of 16675979 is about 4083.6232686182. The cubic root of 16675979 is about 255.4840427992.

The spelling of 16675979 in words is "sixteen million, six hundred seventy-five thousand, nine hundred seventy-nine".