2579649 has 16 divisors (see below), whose sum is σ = 3655680. Its totient is φ = 1613520.

The previous prime is 2579627. The next prime is 2579651. The reversal of 2579649 is 9469752.

2579649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2579649 - 2⁵ = 2579617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2579649.

It is not an unprimeable number, because it can be changed into a prime (2579659) 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 15 ways as a sum of consecutive naturals, for example, 9384 + ... + 9654.

It is an arithmetic number, because the mean of its divisors is an integer number (228480).

2^2579649 is an apocalyptic number.

It is an amenable number.

2579649 is a deficient number, since it is larger than the sum of its proper divisors (1076031).

2579649 is a wasteful number, since it uses less digits than its factorization.

2579649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its digits is 136080, while the sum is 42.

The square root of 2579649 is about 1606.1285751770. The cubic root of 2579649 is about 137.1471769783.

The spelling of 2579649 in words is "two million, five hundred seventy-nine thousand, six hundred forty-nine".