2586881 has 4 divisors (see below), whose sum is σ = 2822064. Its totient is φ = 2351700.

The previous prime is 2586853. The next prime is 2586911. The reversal of 2586881 is 1886852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2586881 is a prime.

It is a super-2 number, since 2×2586881² = 13383906616322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2586811) 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, 117575 + ... + 117596.

It is an arithmetic number, because the mean of its divisors is an integer number (705516).

2^2586881 is an apocalyptic number.

It is an amenable number.

2586881 is a deficient number, since it is larger than the sum of its proper divisors (235183).

2586881 is a wasteful number, since it uses less digits than its factorization.

2586881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235182.

The product of its digits is 30720, while the sum is 38.

The square root of 2586881 is about 1608.3783758805. The cubic root of 2586881 is about 137.2752206189.

The spelling of 2586881 in words is "two million, five hundred eighty-six thousand, eight hundred eighty-one".