5439581 has 8 divisors (see below), whose sum is σ = 6230784. Its totient is φ = 4651920.

The previous prime is 5439563. The next prime is 5439583. The reversal of 5439581 is 1859345.

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

It is a de Polignac number, because none of the positive numbers 2^k-5439581 is a prime.

It is a super-2 number, since 2×5439581² = 59178082911122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5439583) 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, 5516 + ... + 6426.

It is an arithmetic number, because the mean of its divisors is an integer number (778848).

Almost surely, 2^5439581 is an apocalyptic number.

It is an amenable number.

5439581 is a deficient number, since it is larger than the sum of its proper divisors (791203).

5439581 is an equidigital number, since it uses as much as digits as its factorization.

5439581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771.

The product of its digits is 21600, while the sum is 35.

The square root of 5439581 is about 2332.2909338245. The cubic root of 5439581 is about 175.8686713987.

The spelling of 5439581 in words is "five million, four hundred thirty-nine thousand, five hundred eighty-one".