5187644 has 24 divisors (see below), whose sum is σ = 11319168. Its totient is φ = 2021040.

The previous prime is 5187629. The next prime is 5187667. The reversal of 5187644 is 4467815.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 8114 + ... + 8729.

It is an arithmetic number, because the mean of its divisors is an integer number (471632).

Almost surely, 2^5187644 is an apocalyptic number.

It is an amenable number.

5187644 is an abundant number, since it is smaller than the sum of its proper divisors (6131524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5187644 is a wasteful number, since it uses less digits than its factorization.

5187644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16865 (or 16863 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 5187644 is about 2277.6400066736. The cubic root of 5187644 is about 173.1104910795.

The spelling of 5187644 in words is "five million, one hundred eighty-seven thousand, six hundred forty-four".