5639890 has 16 divisors (see below), whose sum is σ = 10186560. Its totient is φ = 2248240.

The previous prime is 5639867. The next prime is 5639927. The reversal of 5639890 is 989365.

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, 2805 + ... + 4375.

It is an arithmetic number, because the mean of its divisors is an integer number (636660).

Almost surely, 2^5639890 is an apocalyptic number.

5639890 is a deficient number, since it is larger than the sum of its proper divisors (4546670).

5639890 is a wasteful number, since it uses less digits than its factorization.

5639890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 5639890 is about 2374.8452581168. The cubic root of 5639890 is about 178.0014518250.

The spelling of 5639890 in words is "five million, six hundred thirty-nine thousand, eight hundred ninety".