5639436 has 96 divisors (see below), whose sum is σ = 16450560. Its totient is φ = 1656000.

The previous prime is 5639411. The next prime is 5639453. The reversal of 5639436 is 6349365.

5639436 is a `hidden beast` number, since 563 + 94 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 5639436.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55786 + ... + 55886.

It is an arithmetic number, because the mean of its divisors is an integer number (171360).

Almost surely, 2^5639436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5639436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8225280).

5639436 is an abundant number, since it is smaller than the sum of its proper divisors (10811124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5639436 is a wasteful number, since it uses less digits than its factorization.

5639436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 164 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 5639436 is about 2374.7496710180. The cubic root of 5639436 is about 177.9966754418.

5639436 divided by its sum of digits (36) gives a palindrome (156651).

It can be divided in two parts, 563 and 9436, that added together give a palindrome (9999).

The spelling of 5639436 in words is "five million, six hundred thirty-nine thousand, four hundred thirty-six".