2663606 has 16 divisors (see below), whose sum is σ = 4466448. Its totient is φ = 1180800.

The previous prime is 2663603. The next prime is 2663627. The reversal of 2663606 is 6063662.

It is an Ulam number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2663603) 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, 575 + ... + 2378.

It is an arithmetic number, because the mean of its divisors is an integer number (279153).

2^2663606 is an apocalyptic number.

2663606 is a deficient number, since it is larger than the sum of its proper divisors (1802842).

2663606 is a wasteful number, since it uses less digits than its factorization.

2663606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 2663606 is about 1632.0557588514. The cubic root of 2663606 is about 138.6191808662.

The spelling of 2663606 in words is "two million, six hundred sixty-three thousand, six hundred six".