2689887 has 16 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 1656000.

The previous prime is 2689877. The next prime is 2689889. The reversal of 2689887 is 7889862.

It is a happy number.

It is not a de Polignac number, because 2689887 - 2¹⁰ = 2688863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689889) 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, 1762 + ... + 2912.

It is an arithmetic number, because the mean of its divisors is an integer number (241920).

2^2689887 is an apocalyptic number.

2689887 is a deficient number, since it is larger than the sum of its proper divisors (1180833).

2689887 is a wasteful number, since it uses less digits than its factorization.

2689887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214.

The product of its digits is 387072, while the sum is 48.

The square root of 2689887 is about 1640.0874976659. The cubic root of 2689887 is about 139.0735942081.

The spelling of 2689887 in words is "two million, six hundred eighty-nine thousand, eight hundred eighty-seven".