2559867 has 4 divisors (see below), whose sum is σ = 3413160. Its totient is φ = 1706576.

The previous prime is 2559863. The next prime is 2559901. The reversal of 2559867 is 7689552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2559867 - 2² = 2559863 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2559863) 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, 426642 + ... + 426647.

It is an arithmetic number, because the mean of its divisors is an integer number (853290).

2^2559867 is an apocalyptic number.

2559867 is a deficient number, since it is larger than the sum of its proper divisors (853293).

2559867 is an equidigital number, since it uses as much as digits as its factorization.

2559867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853292.

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

The square root of 2559867 is about 1599.9584369602. The cubic root of 2559867 is about 136.7957066639.

The spelling of 2559867 in words is "two million, five hundred fifty-nine thousand, eight hundred sixty-seven".