5187838 has 4 divisors (see below), whose sum is σ = 7781760. Its totient is φ = 2593918.

The previous prime is 5187827. The next prime is 5187841. The reversal of 5187838 is 8387815.

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

It is a super-2 number, since 2×5187838² = 53827326228488, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 5187838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1296958 + ... + 1296961.

It is an arithmetic number, because the mean of its divisors is an integer number (1945440).

Almost surely, 2^5187838 is an apocalyptic number.

5187838 is a deficient number, since it is larger than the sum of its proper divisors (2593922).

5187838 is a wasteful number, since it uses less digits than its factorization.

5187838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593921.

The product of its digits is 53760, while the sum is 40.

The square root of 5187838 is about 2277.6825942172. The cubic root of 5187838 is about 173.1126489644.

The spelling of 5187838 in words is "five million, one hundred eighty-seven thousand, eight hundred thirty-eight".