2602609 has 4 divisors (see below), whose sum is σ = 2606704. Its totient is φ = 2598516.

The previous prime is 2602603. The next prime is 2602637. The reversal of 2602609 is 9062062.

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.

It is a cyclic number.

It is not a de Polignac number, because 2602609 - 2⁹ = 2602097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2602603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867 + ... + 2440.

It is an arithmetic number, because the mean of its divisors is an integer number (651676).

2^2602609 is an apocalyptic number.

It is an amenable number.

2602609 is a deficient number, since it is larger than the sum of its proper divisors (4095).

2602609 is an equidigital number, since it uses as much as digits as its factorization.

2602609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2602609 is about 1613.2603633636. The cubic root of 2602609 is about 137.5528656222.

The spelling of 2602609 in words is "two million, six hundred two thousand, six hundred nine".