5187643 has 4 divisors (see below), whose sum is σ = 5192208. Its totient is φ = 5183080.

The previous prime is 5187629. The next prime is 5187667. The reversal of 5187643 is 3467815.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5187643 - 2⁹ = 5187131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5187599 and 5187608.

It is not an unprimeable number, because it can be changed into a prime (5187683) 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, 930 + ... + 3352.

It is an arithmetic number, because the mean of its divisors is an integer number (1298052).

Almost surely, 2^5187643 is an apocalyptic number.

5187643 is a deficient number, since it is larger than the sum of its proper divisors (4565).

5187643 is a wasteful number, since it uses less digits than its factorization.

5187643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564.

The product of its digits is 20160, while the sum is 34.

The square root of 5187643 is about 2277.6397871481. The cubic root of 5187643 is about 173.1104799562.

The spelling of 5187643 in words is "five million, one hundred eighty-seven thousand, six hundred forty-three".