2612609 has 4 divisors (see below), whose sum is σ = 2645760. Its totient is φ = 2579460.

The previous prime is 2612549. The next prime is 2612647. The reversal of 2612609 is 9062162.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9062162 = 2 ⋅4531081.

It is a cyclic number.

It is not a de Polignac number, because 2612609 - 2⁸ = 2612353 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 (2612699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16457 + ... + 16614.

It is an arithmetic number, because the mean of its divisors is an integer number (661440).

2^2612609 is an apocalyptic number.

It is an amenable number.

2612609 is a deficient number, since it is larger than the sum of its proper divisors (33151).

2612609 is an equidigital number, since it uses as much as digits as its factorization.

2612609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33150.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2612609 is about 1616.3567056810. The cubic root of 2612609 is about 137.7288135110.

The spelling of 2612609 in words is "two million, six hundred twelve thousand, six hundred nine".