4493539 has 4 divisors (see below), whose sum is σ = 4615024. Its totient is φ = 4372056.

The previous prime is 4493527. The next prime is 4493551. The reversal of 4493539 is 9353944.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (4493527) and next prime (4493551).

It is a cyclic number.

It is not a de Polignac number, because 4493539 - 2⁵ = 4493507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 121447 = 4493539 / (4 + 4 + 9 + 3 + 5 + 3 + 9).

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 = 4493498 and 4493507.

It is not an unprimeable number, because it can be changed into a prime (4493509) 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, 60687 + ... + 60760.

It is an arithmetic number, because the mean of its divisors is an integer number (1153756).

Almost surely, 2^4493539 is an apocalyptic number.

4493539 is a deficient number, since it is larger than the sum of its proper divisors (121485).

4493539 is a wasteful number, since it uses less digits than its factorization.

4493539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121484.

The product of its digits is 58320, while the sum is 37.

The square root of 4493539 is about 2119.7969242359. The cubic root of 4493539 is about 165.0173107029.

The spelling of 4493539 in words is "four million, four hundred ninety-three thousand, five hundred thirty-nine".