2566887 has 12 divisors (see below), whose sum is σ = 3514920. Its totient is φ = 1666240.

The previous prime is 2566867. The next prime is 2566897. The reversal of 2566887 is 7886652.

It is not a de Polignac number, because 2566887 - 2¹⁰ = 2565863 is a prime.

2566887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4789 + ... + 5297.

It is an arithmetic number, because the mean of its divisors is an integer number (292910).

2^2566887 is an apocalyptic number.

2566887 is a deficient number, since it is larger than the sum of its proper divisors (948033).

2566887 is an equidigital number, since it uses as much as digits as its factorization.

2566887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594 (or 553 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 2566887 is about 1602.1507419716. The cubic root of 2566887 is about 136.9206388538.

The spelling of 2566887 in words is "two million, five hundred sixty-six thousand, eight hundred eighty-seven".