5187638 has 8 divisors (see below), whose sum is σ = 7829688. Its totient is φ = 2577744.

The previous prime is 5187629. The next prime is 5187667. The reversal of 5187638 is 8367815.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7631 + ... + 8282.

It is an arithmetic number, because the mean of its divisors is an integer number (978711).

Almost surely, 2^5187638 is an apocalyptic number.

5187638 is a deficient number, since it is larger than the sum of its proper divisors (2642050).

5187638 is a wasteful number, since it uses less digits than its factorization.

5187638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16078.

The product of its digits is 40320, while the sum is 38.

The square root of 5187638 is about 2277.6386895204. The cubic root of 5187638 is about 173.1104243399.

The spelling of 5187638 in words is "five million, one hundred eighty-seven thousand, six hundred thirty-eight".