2387863 has 8 divisors (see below), whose sum is σ = 2538800. Its totient is φ = 2239488.

The previous prime is 2387857. The next prime is 2387867. The reversal of 2387863 is 3687832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 10-Lehmer number, since φ(2387863) divides (2387863-1)¹⁰.

It is a cyclic number.

It is not a de Polignac number, because 2387863 - 2¹⁷ = 2256791 is a prime.

It is an Ulam number.

It is a Duffinian number.

2387863 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2387867) 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 7 ways as a sum of consecutive naturals, for example, 1495 + ... + 2647.

It is an arithmetic number, because the mean of its divisors is an integer number (317350).

2^2387863 is an apocalyptic number.

2387863 is a deficient number, since it is larger than the sum of its proper divisors (150937).

2387863 is a wasteful number, since it uses less digits than its factorization.

2387863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281.

The product of its digits is 48384, while the sum is 37.

The square root of 2387863 is about 1545.2711736132. The cubic root of 2387863 is about 133.6605166154.

The spelling of 2387863 in words is "two million, three hundred eighty-seven thousand, eight hundred sixty-three".