2056664 has 16 divisors (see below), whose sum is σ = 3981120. Its totient is φ = 995040.

The previous prime is 2056661. The next prime is 2056667. The reversal of 2056664 is 4666502.

It is an interprime number because it is at equal distance from previous prime (2056661) and next prime (2056667).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3899 + ... + 4394.

It is an arithmetic number, because the mean of its divisors is an integer number (248820).

2^2056664 is an apocalyptic number.

It is an amenable number.

2056664 is a deficient number, since it is larger than the sum of its proper divisors (1924456).

2056664 is a wasteful number, since it uses less digits than its factorization.

2056664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8330 (or 8326 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2056664 is about 1434.1073878898. The cubic root of 2056664 is about 127.1709109015.

The spelling of 2056664 in words is "two million, fifty-six thousand, six hundred sixty-four".