2641609 has 8 divisors (see below), whose sum is σ = 2717280. Its totient is φ = 2567136.

The previous prime is 2641577. The next prime is 2641631. The reversal of 2641609 is 9061462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2641609 - 2⁵ = 2641577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2641649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5742 + ... + 6184.

It is an arithmetic number, because the mean of its divisors is an integer number (339660).

2^2641609 is an apocalyptic number.

It is an amenable number.

2641609 is a deficient number, since it is larger than the sum of its proper divisors (75671).

2641609 is an equidigital number, since it uses as much as digits as its factorization.

2641609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2641609 is about 1625.3027410301. The cubic root of 2641609 is about 138.2365368549.

The spelling of 2641609 in words is "two million, six hundred forty-one thousand, six hundred nine".