6613543 has 2 divisors, whose sum is σ = 6613544. Its totient is φ = 6613542.

The previous prime is 6613517. The next prime is 6613567. The reversal of 6613543 is 3453166.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6613543 - 2⁹ = 6613031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6613573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3306771 + 3306772.

It is an arithmetic number, because the mean of its divisors is an integer number (3306772).

Almost surely, 2^6613543 is an apocalyptic number.

6613543 is a deficient number, since it is larger than the sum of its proper divisors (1).

6613543 is an equidigital number, since it uses as much as digits as its factorization.

6613543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 28.

The square root of 6613543 is about 2571.6809677719. The cubic root of 6613543 is about 187.7059591630.

The spelling of 6613543 in words is "six million, six hundred thirteen thousand, five hundred forty-three".