5187847 has 4 divisors (see below), whose sum is σ = 5928976. Its totient is φ = 4446720.

The previous prime is 5187841. The next prime is 5187859. The reversal of 5187847 is 7487815.

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-5187847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5187841) by changing a digit.

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, 370554 + ... + 370567.

It is an arithmetic number, because the mean of its divisors is an integer number (1482244).

Almost surely, 2^5187847 is an apocalyptic number.

5187847 is a deficient number, since it is larger than the sum of its proper divisors (741129).

5187847 is an equidigital number, since it uses as much as digits as its factorization.

5187847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741128.

The product of its digits is 62720, while the sum is 40.

The square root of 5187847 is about 2277.6845699087. The cubic root of 5187847 is about 173.1127490712.

Subtracting 5187847 from its reverse (7487815), we obtain a cube (2299968 = 132³).

The spelling of 5187847 in words is "five million, one hundred eighty-seven thousand, eight hundred forty-seven".