6544493 has 16 divisors (see below), whose sum is σ = 7197120. Its totient is φ = 5930496.

The previous prime is 6544487. The next prime is 6544547. The reversal of 6544493 is 3944456.

It is a cyclic number.

It is not a de Polignac number, because 6544493 - 2⁶ = 6544429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6544403) 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, 67421 + ... + 67517.

It is an arithmetic number, because the mean of its divisors is an integer number (449820).

Almost surely, 2^6544493 is an apocalyptic number.

It is an amenable number.

6544493 is a deficient number, since it is larger than the sum of its proper divisors (652627).

6544493 is a wasteful number, since it uses less digits than its factorization.

6544493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236.

The product of its digits is 51840, while the sum is 35.

The square root of 6544493 is about 2558.2206707006. The cubic root of 6544493 is about 187.0504120236.

The spelling of 6544493 in words is "six million, five hundred forty-four thousand, four hundred ninety-three".