4543493 has 4 divisors (see below), whose sum is σ = 4576320. Its totient is φ = 4510668.

The previous prime is 4543481. The next prime is 4543507. The reversal of 4543493 is 3943454.

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 an emirpimes, since its reverse is a distinct semiprime: 3943454 = 2 ⋅1971727.

It is a cyclic number.

It is not a de Polignac number, because 4543493 - 2⁴ = 4543477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4543393) 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, 16205 + ... + 16482.

It is an arithmetic number, because the mean of its divisors is an integer number (1144080).

Almost surely, 2^4543493 is an apocalyptic number.

It is an amenable number.

4543493 is a deficient number, since it is larger than the sum of its proper divisors (32827).

4543493 is a wasteful number, since it uses less digits than its factorization.

4543493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32826.

The product of its digits is 25920, while the sum is 32.

The square root of 4543493 is about 2131.5470907301. The cubic root of 4543493 is about 165.6265495524.

The spelling of 4543493 in words is "four million, five hundred forty-three thousand, four hundred ninety-three".