2678559 has 16 divisors (see below), whose sum is σ = 3878112. Its totient is φ = 1634688.

The previous prime is 2678551. The next prime is 2678587. The reversal of 2678559 is 9558762.

It is not a de Polignac number, because 2678559 - 2³ = 2678551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2678559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6549 + ... + 6945.

It is an arithmetic number, because the mean of its divisors is an integer number (242382).

2^2678559 is an apocalyptic number.

2678559 is a deficient number, since it is larger than the sum of its proper divisors (1199553).

2678559 is a wasteful number, since it uses less digits than its factorization.

2678559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586.

The product of its digits is 151200, while the sum is 42.

The square root of 2678559 is about 1636.6303797742. The cubic root of 2678559 is about 138.8780912732.

The spelling of 2678559 in words is "two million, six hundred seventy-eight thousand, five hundred fifty-nine".