5591889 has 16 divisors (see below), whose sum is σ = 8403840. Its totient is φ = 3674160.

The previous prime is 5591881. The next prime is 5591891. The reversal of 5591889 is 9881955.

5591889 is a `hidden beast` number, since 559 + 18 + 89 = 666.

It is not a de Polignac number, because 5591889 - 2³ = 5591881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5591881) 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 15 ways as a sum of consecutive naturals, for example, 459 + ... + 3375.

It is an arithmetic number, because the mean of its divisors is an integer number (525240).

Almost surely, 2^5591889 is an apocalyptic number.

It is an amenable number.

5591889 is a deficient number, since it is larger than the sum of its proper divisors (2811951).

5591889 is a wasteful number, since it uses less digits than its factorization.

5591889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997 (or 2991 counting only the distinct ones).

The product of its digits is 129600, while the sum is 45.

The square root of 5591889 is about 2364.7175307000. The cubic root of 5591889 is about 177.4950233346.

The spelling of 5591889 in words is "five million, five hundred ninety-one thousand, eight hundred eighty-nine".