2664655 has 16 divisors (see below), whose sum is σ = 3847680. Its totient is φ = 1730592.

The previous prime is 2664647. The next prime is 2664661. The reversal of 2664655 is 5564662.

2664655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2664655 - 2³ = 2664647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2664655.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1339 + ... + 2668.

It is an arithmetic number, because the mean of its divisors is an integer number (240480).

2^2664655 is an apocalyptic number.

2664655 is a deficient number, since it is larger than the sum of its proper divisors (1183025).

2664655 is a wasteful number, since it uses less digits than its factorization.

2664655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038.

The product of its digits is 43200, while the sum is 34.

The square root of 2664655 is about 1632.3771010401. The cubic root of 2664655 is about 138.6373758039.

The spelling of 2664655 in words is "two million, six hundred sixty-four thousand, six hundred fifty-five".