2587887 has 12 divisors (see below), whose sum is σ = 3752424. Its totient is φ = 1718640.

The previous prime is 2587877. The next prime is 2587889. The reversal of 2587887 is 7887852.

It is a happy number.

It is not a de Polignac number, because 2587887 - 2⁷ = 2587759 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2587889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3448 + ... + 4130.

It is an arithmetic number, because the mean of its divisors is an integer number (312702).

2^2587887 is an apocalyptic number.

2587887 is a deficient number, since it is larger than the sum of its proper divisors (1164537).

2587887 is a wasteful number, since it uses less digits than its factorization.

2587887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110 (or 1107 counting only the distinct ones).

The product of its digits is 250880, while the sum is 45.

The square root of 2587887 is about 1608.6910828372. The cubic root of 2587887 is about 137.2930130846.

The spelling of 2587887 in words is "two million, five hundred eighty-seven thousand, eight hundred eighty-seven".