4539493 has 16 divisors (see below), whose sum is σ = 5647104. Its totient is φ = 3559680.

The previous prime is 4539481. The next prime is 4539511. The reversal of 4539493 is 3949354.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4539493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4539413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3888 + ... + 4918.

It is an arithmetic number, because the mean of its divisors is an integer number (352944).

Almost surely, 2^4539493 is an apocalyptic number.

It is an amenable number.

4539493 is a deficient number, since it is larger than the sum of its proper divisors (1107611).

4539493 is a wasteful number, since it uses less digits than its factorization.

4539493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092.

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

The square root of 4539493 is about 2130.6085984995. The cubic root of 4539493 is about 165.5779305191.

The spelling of 4539493 in words is "four million, five hundred thirty-nine thousand, four hundred ninety-three".