2589681 has 8 divisors (see below), whose sum is σ = 3634720. Its totient is φ = 1635552.

The previous prime is 2589679. The next prime is 2589701. The reversal of 2589681 is 1869852.

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

It is not a de Polignac number, because 2589681 - 2¹ = 2589679 is a prime.

It is a super-2 number, since 2×2589681² = 13412895363522, which contains 22 as substring.

It is a Duffinian number.

2589681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2589611) 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, 22660 + ... + 22773.

It is an arithmetic number, because the mean of its divisors is an integer number (454340).

2^2589681 is an apocalyptic number.

It is an amenable number.

2589681 is a deficient number, since it is larger than the sum of its proper divisors (1045039).

2589681 is a wasteful number, since it uses less digits than its factorization.

2589681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45455.

The product of its digits is 34560, while the sum is 39.

The square root of 2589681 is about 1609.2485824135. The cubic root of 2589681 is about 137.3247309523.

The spelling of 2589681 in words is "two million, five hundred eighty-nine thousand, six hundred eighty-one".