2788587 has 20 divisors (see below), whose sum is σ = 4210800. Its totient is φ = 1839024.

The previous prime is 2788567. The next prime is 2788603. The reversal of 2788587 is 7858872.

It is a happy number.

It is not a de Polignac number, because 2788587 - 2⁶ = 2788523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2788567) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13914 + ... + 14112.

It is an arithmetic number, because the mean of its divisors is an integer number (210540).

2^2788587 is an apocalyptic number.

2788587 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2788587 is a deficient number, since it is larger than the sum of its proper divisors (1422213).

2788587 is a wasteful number, since it uses less digits than its factorization.

2788587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 375 counting only the distinct ones).

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

The square root of 2788587 is about 1669.9062847956. The cubic root of 2788587 is about 140.7542119052.

It can be divided in two parts, 27885 and 87, that added together give a palindrome (27972).

The spelling of 2788587 in words is "two million, seven hundred eighty-eight thousand, five hundred eighty-seven".