2605606 has 4 divisors (see below), whose sum is σ = 3908412. Its totient is φ = 1302802.

The previous prime is 2605579. The next prime is 2605609. The reversal of 2605606 is 6065062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6065062 = 2 ⋅3032531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2605609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651400 + ... + 651403.

It is an arithmetic number, because the mean of its divisors is an integer number (977103).

2^2605606 is an apocalyptic number.

2605606 is a deficient number, since it is larger than the sum of its proper divisors (1302806).

2605606 is a wasteful number, since it uses less digits than its factorization.

2605606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302805.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2605606 is about 1614.1889604380. The cubic root of 2605606 is about 137.6056444300.

The spelling of 2605606 in words is "two million, six hundred five thousand, six hundred six".