5639895 has 16 divisors (see below), whose sum is σ = 10026720. Its totient is φ = 3007872.

The previous prime is 5639867. The next prime is 5639927. The reversal of 5639895 is 5989365.

5639895 is a `hidden beast` number, since 5 + 639 + 8 + 9 + 5 = 666.

It is not a de Polignac number, because 5639895 - 2⁶ = 5639831 is a prime.

It is a super-2 number, since 2×5639895² = 63616831222050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 5639895.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20754 + ... + 21023.

It is an arithmetic number, because the mean of its divisors is an integer number (626670).

Almost surely, 2^5639895 is an apocalyptic number.

5639895 is a deficient number, since it is larger than the sum of its proper divisors (4386825).

5639895 is a wasteful number, since it uses less digits than its factorization.

5639895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41791 (or 41785 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 5639895 is about 2374.8463108168. The cubic root of 5639895 is about 178.0015044270.

The spelling of 5639895 in words is "five million, six hundred thirty-nine thousand, eight hundred ninety-five".