2579887 has 8 divisors (see below), whose sum is σ = 2709504. Its totient is φ = 2451768.

The previous prime is 2579827. The next prime is 2579891. The reversal of 2579887 is 7889752.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2579887 is a prime.

It is a Duffinian number.

2579887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2579807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4878 + ... + 5380.

It is an arithmetic number, because the mean of its divisors is an integer number (338688).

2^2579887 is an apocalyptic number.

2579887 is a deficient number, since it is larger than the sum of its proper divisors (129617).

2579887 is a wasteful number, since it uses less digits than its factorization.

2579887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749.

The product of its digits is 282240, while the sum is 46.

The square root of 2579887 is about 1606.2026646722. The cubic root of 2579887 is about 137.1513946095.

The spelling of 2579887 in words is "two million, five hundred seventy-nine thousand, eight hundred eighty-seven".