5187890 has 16 divisors (see below), whose sum is σ = 9887832. Its totient is φ = 1953024.

The previous prime is 5187887. The next prime is 5187901. The reversal of 5187890 is 987815.

It can be written as a sum of positive squares in 4 ways, for example, as 3094081 + 2093809 = 1759^2 + 1447^2 .

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, 15089 + ... + 15428.

Almost surely, 2^5187890 is an apocalyptic number.

5187890 is a deficient number, since it is larger than the sum of its proper divisors (4699942).

5187890 is a wasteful number, since it uses less digits than its factorization.

5187890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30541.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 5187890 is about 2277.6940092998. The cubic root of 5187890 is about 173.1132273574.

The spelling of 5187890 in words is "five million, one hundred eighty-seven thousand, eight hundred ninety".