5236639 has 4 divisors (see below), whose sum is σ = 5241240. Its totient is φ = 5232040.

The previous prime is 5236633. The next prime is 5236661. The reversal of 5236639 is 9366325.

5236639 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 is a cyclic number.

It is not a de Polignac number, because 5236639 - 2³ = 5236631 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5236631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804 + ... + 3334.

It is an arithmetic number, because the mean of its divisors is an integer number (1310310).

Almost surely, 2^5236639 is an apocalyptic number.

5236639 is a deficient number, since it is larger than the sum of its proper divisors (4601).

5236639 is a wasteful number, since it uses less digits than its factorization.

5236639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4600.

The product of its digits is 29160, while the sum is 34.

The square root of 5236639 is about 2288.3703808606. The cubic root of 5236639 is about 173.6537682876.

The spelling of 5236639 in words is "five million, two hundred thirty-six thousand, six hundred thirty-nine".