7009979 has 2 divisors, whose sum is σ = 7009980. Its totient is φ = 7009978.

The previous prime is 7009969. The next prime is 7009991. The reversal of 7009979 is 9799007.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7009979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7009969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3504989 + 3504990.

It is an arithmetic number, because the mean of its divisors is an integer number (3504990).

Almost surely, 2^7009979 is an apocalyptic number.

7009979 is a deficient number, since it is larger than the sum of its proper divisors (1).

7009979 is an equidigital number, since it uses as much as digits as its factorization.

7009979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35721, while the sum is 41.

The square root of 7009979 is about 2647.6364931765. The cubic root of 7009979 is about 191.3839757843.

The spelling of 7009979 in words is "seven million, nine thousand, nine hundred seventy-nine".