5639963 has 8 divisors (see below), whose sum is σ = 6486528. Its totient is φ = 4803624.

The previous prime is 5639939. The next prime is 5639969. The reversal of 5639963 is 3699365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5639963 - 2⁸ = 5639707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5639963.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5639969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331 + ... + 3612.

It is an arithmetic number, because the mean of its divisors is an integer number (810816).

Almost surely, 2^5639963 is an apocalyptic number.

5639963 is a deficient number, since it is larger than the sum of its proper divisors (846565).

5639963 is a wasteful number, since it uses less digits than its factorization.

5639963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113.

The product of its digits is 131220, while the sum is 41.

The square root of 5639963 is about 2374.8606274895. The cubic root of 5639963 is about 178.0022198099.

The spelling of 5639963 in words is "five million, six hundred thirty-nine thousand, nine hundred sixty-three".