2659309 has 2 divisors, whose sum is σ = 2659310. Its totient is φ = 2659308.

The previous prime is 2659289. The next prime is 2659331. The reversal of 2659309 is 9039562.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2550409 + 108900 = 1597^2 + 330^2 .

It is a cyclic number.

It is not a de Polignac number, because 2659309 - 2⁵ = 2659277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2659339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329654 + 1329655.

It is an arithmetic number, because the mean of its divisors is an integer number (1329655).

2^2659309 is an apocalyptic number.

It is an amenable number.

2659309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2659309 is an equidigital number, since it uses as much as digits as its factorization.

2659309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 2659309 is about 1630.7387896288. The cubic root of 2659309 is about 138.5445993638.

The spelling of 2659309 in words is "two million, six hundred fifty-nine thousand, three hundred nine".