5639237 has 4 divisors (see below), whose sum is σ = 5645100. Its totient is φ = 5633376.

The previous prime is 5639213. The next prime is 5639243. The reversal of 5639237 is 7329365.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2979076 + 2660161 = 1726^2 + 1631^2 .

It is a cyclic number.

It is not a de Polignac number, because 5639237 - 2⁶ = 5639173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5639197 and 5639206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5639287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112 + ... + 3537.

It is an arithmetic number, because the mean of its divisors is an integer number (1411275).

Almost surely, 2^5639237 is an apocalyptic number.

It is an amenable number.

5639237 is a deficient number, since it is larger than the sum of its proper divisors (5863).

5639237 is a wasteful number, since it uses less digits than its factorization.

5639237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862.

The product of its digits is 34020, while the sum is 35.

The square root of 5639237 is about 2374.7077714953. The cubic root of 5639237 is about 177.9945817481.

It can be divided in two parts, 56 and 39237, that added together give a palindrome (39293).

The spelling of 5639237 in words is "five million, six hundred thirty-nine thousand, two hundred thirty-seven".