2316609 has 6 divisors (see below), whose sum is σ = 3346226. Its totient is φ = 1544400.

The previous prime is 2316593. The next prime is 2316617. The reversal of 2316609 is 9066132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2259009 + 57600 = 1503^2 + 240^2 .

It is not a de Polignac number, because 2316609 - 2⁴ = 2316593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2316679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128692 + ... + 128709.

2^2316609 is an apocalyptic number.

It is an amenable number.

2316609 is a deficient number, since it is larger than the sum of its proper divisors (1029617).

2316609 is a wasteful number, since it uses less digits than its factorization.

2316609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257407 (or 257404 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2316609 is about 1522.0410638350. The cubic root of 2316609 is about 132.3175892685.

The spelling of 2316609 in words is "two million, three hundred sixteen thousand, six hundred nine".