2579009 has 2 divisors, whose sum is σ = 2579010. Its totient is φ = 2579008.

The previous prime is 2578993. The next prime is 2579051. The reversal of 2579009 is 9009752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2356225 + 222784 = 1535^2 + 472^2 .

It is a cyclic number.

It is not a de Polignac number, because 2579009 - 2⁴ = 2578993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2579209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1289504 + 1289505.

It is an arithmetic number, because the mean of its divisors is an integer number (1289505).

2^2579009 is an apocalyptic number.

It is an amenable number.

2579009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2579009 is an equidigital number, since it uses as much as digits as its factorization.

2579009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 2579009 is about 1605.9293259667. The cubic root of 2579009 is about 137.1358341621.

The spelling of 2579009 in words is "two million, five hundred seventy-nine thousand, nine".