5639738 has 16 divisors (see below), whose sum is σ = 9507456. Its totient is φ = 2489520.

The previous prime is 5639729. The next prime is 5639741. The reversal of 5639738 is 8379365.

It is a junction number, because it is equal to n+sod(n) for n = 5639695 and 5639704.

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, 4118 + ... + 5313.

It is an arithmetic number, because the mean of its divisors is an integer number (594216).

Almost surely, 2^5639738 is an apocalyptic number.

5639738 is a deficient number, since it is larger than the sum of its proper divisors (3867718).

5639738 is a wasteful number, since it uses less digits than its factorization.

5639738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9469.

The product of its digits is 136080, while the sum is 41.

The square root of 5639738 is about 2374.8132558161. The cubic root of 5639738 is about 177.9998527121. Note that the first 3 decimals are identical.

It can be divided in two parts, 563 and 9738, that added together give a palindrome (10301).

The spelling of 5639738 in words is "five million, six hundred thirty-nine thousand, seven hundred thirty-eight".