2806606 has 16 divisors (see below), whose sum is σ = 4623408. Its totient is φ = 1267200.

The previous prime is 2806603. The next prime is 2806607. The reversal of 2806606 is 6066082.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2806603) 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, 3916 + ... + 4576.

It is an arithmetic number, because the mean of its divisors is an integer number (288963).

2^2806606 is an apocalyptic number.

2806606 is a deficient number, since it is larger than the sum of its proper divisors (1816802).

2806606 is a wasteful number, since it uses less digits than its factorization.

2806606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2806606 is about 1675.2928102275. The cubic root of 2806606 is about 141.0567315260.

It can be divided in two parts, 280 and 6606, that added together give a palindrome (6886).

The spelling of 2806606 in words is "two million, eight hundred six thousand, six hundred six".