2056659 has 8 divisors (see below), whose sum is σ = 2991552. Its totient is φ = 1246440.

The previous prime is 2056631. The next prime is 2056661. The reversal of 2056659 is 9566502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2056659 - 2⁵ = 2056627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 62323 = 2056659 / (2 + 0 + 5 + 6 + 6 + 5 + 9).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2056679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31129 + ... + 31194.

It is an arithmetic number, because the mean of its divisors is an integer number (373944).

2^2056659 is an apocalyptic number.

2056659 is a deficient number, since it is larger than the sum of its proper divisors (934893).

2056659 is a wasteful number, since it uses less digits than its factorization.

2056659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62337.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 2056659 is about 1434.1056446441. The cubic root of 2056659 is about 127.1708078455.

The spelling of 2056659 in words is "two million, fifty-six thousand, six hundred fifty-nine".