2579864 has 32 divisors (see below), whose sum is σ = 5771520. Its totient is φ = 1057056.

The previous prime is 2579827. The next prime is 2579891. The reversal of 2579864 is 4689752.

2579864 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287 + ... + 2289.

It is an arithmetic number, because the mean of its divisors is an integer number (180360).

2^2579864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2579864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2885760).

2579864 is an abundant number, since it is smaller than the sum of its proper divisors (3191656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2579864 is a wasteful number, since it uses less digits than its factorization.

2579864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039 (or 2035 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 2579864 is about 1606.1955049122. The cubic root of 2579864 is about 137.1509870346.

It can be divided in two parts, 2579 and 864, that added together give a palindrome (3443).

The spelling of 2579864 in words is "two million, five hundred seventy-nine thousand, eight hundred sixty-four".