4028587 has 4 divisors (see below), whose sum is σ = 4068576. Its totient is φ = 3988600.

The previous prime is 4028573. The next prime is 4028599. The reversal of 4028587 is 7858204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4028587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4028287) 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, 19843 + ... + 20044.

It is an arithmetic number, because the mean of its divisors is an integer number (1017144).

Almost surely, 2^4028587 is an apocalyptic number.

4028587 is a deficient number, since it is larger than the sum of its proper divisors (39989).

4028587 is a wasteful number, since it uses less digits than its factorization.

4028587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39988.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 4028587 is about 2007.1340264168. The cubic root of 4028587 is about 159.1173665039.

The spelling of 4028587 in words is "four million, twenty-eight thousand, five hundred eighty-seven".