5187920 has 20 divisors (see below), whose sum is σ = 12062100. Its totient is φ = 2075136.

The previous prime is 5187913. The next prime is 5187937. The reversal of 5187920 is 297815.

It can be written as a sum of positive squares in 2 ways, for example, as 2062096 + 3125824 = 1436^2 + 1768^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32345 + ... + 32504.

It is an arithmetic number, because the mean of its divisors is an integer number (603105).

Almost surely, 2^5187920 is an apocalyptic number.

It is an amenable number.

5187920 is an abundant number, since it is smaller than the sum of its proper divisors (6874180).

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

5187920 is a wasteful number, since it uses less digits than its factorization.

5187920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64862 (or 64856 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 5187920 is about 2277.7005948983. The cubic root of 5187920 is about 173.1135610440.

The spelling of 5187920 in words is "five million, one hundred eighty-seven thousand, nine hundred twenty".