4979609 has 2 divisors, whose sum is σ = 4979610. Its totient is φ = 4979608.

The previous prime is 4979599. The next prime is 4979617. The reversal of 4979609 is 9069794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4963984 + 15625 = 2228^2 + 125^2 .

It is a cyclic number.

It is not a de Polignac number, because 4979609 - 2⁸ = 4979353 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4979609.

It is not a weakly prime, because it can be changed into another prime (4979669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489804 + 2489805.

It is an arithmetic number, because the mean of its divisors is an integer number (2489805).

Almost surely, 2^4979609 is an apocalyptic number.

It is an amenable number.

4979609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4979609 is an equidigital number, since it uses as much as digits as its factorization.

4979609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 4979609 is about 2231.5037530777. The cubic root of 4979609 is about 170.7648238214.

The spelling of 4979609 in words is "four million, nine hundred seventy-nine thousand, six hundred nine".