5639889 has 16 divisors (see below), whose sum is σ = 7776000. Its totient is φ = 3634176.

The previous prime is 5639867. The next prime is 5639927. The reversal of 5639889 is 9889365.

It is not a de Polignac number, because 5639889 - 2⁵ = 5639857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5639839) 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, 12337 + ... + 12785.

It is an arithmetic number, because the mean of its divisors is an integer number (486000).

Almost surely, 2^5639889 is an apocalyptic number.

It is an amenable number.

5639889 is a deficient number, since it is larger than the sum of its proper divisors (2136111).

5639889 is a wasteful number, since it uses less digits than its factorization.

5639889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584.

The product of its digits is 466560, while the sum is 48.

The square root of 5639889 is about 2374.8450475768. The cubic root of 5639889 is about 178.0014413047.

The spelling of 5639889 in words is "five million, six hundred thirty-nine thousand, eight hundred eighty-nine".