2649766 has 16 divisors (see below), whose sum is σ = 4640256. Its totient is φ = 1111176.

The previous prime is 2649733. The next prime is 2649769. The reversal of 2649766 is 6679462.

2649766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1356 + ... + 2671.

It is an arithmetic number, because the mean of its divisors is an integer number (290016).

2^2649766 is an apocalyptic number.

2649766 is a deficient number, since it is larger than the sum of its proper divisors (1990490).

2649766 is a wasteful number, since it uses less digits than its factorization.

2649766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083.

The product of its digits is 108864, while the sum is 40.

The square root of 2649766 is about 1627.8101854946. The cubic root of 2649766 is about 138.3786770919.

The spelling of 2649766 in words is "two million, six hundred forty-nine thousand, seven hundred sixty-six".