5639441 has 4 divisors (see below), whose sum is σ = 5644800. Its totient is φ = 5634084.

The previous prime is 5639411. The next prime is 5639453. The reversal of 5639441 is 1449365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, 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 5639441 - 2⁶ = 5639377 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5639398 and 5639407.

It is not an unprimeable number, because it can be changed into a prime (5639411) 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, 521 + ... + 3398.

It is an arithmetic number, because the mean of its divisors is an integer number (1411200).

Almost surely, 2^5639441 is an apocalyptic number.

It is an amenable number.

5639441 is a deficient number, since it is larger than the sum of its proper divisors (5359).

5639441 is a wasteful number, since it uses less digits than its factorization.

5639441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5358.

The product of its digits is 12960, while the sum is 32.

The square root of 5639441 is about 2374.7507237603. The cubic root of 5639441 is about 177.9967280466.

The spelling of 5639441 in words is "five million, six hundred thirty-nine thousand, four hundred forty-one".