6549223 has 2 divisors, whose sum is σ = 6549224. Its totient is φ = 6549222.

The previous prime is 6549197. The next prime is 6549241. The reversal of 6549223 is 3229456.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6549223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6549523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3274611 + 3274612.

It is an arithmetic number, because the mean of its divisors is an integer number (3274612).

Almost surely, 2^6549223 is an apocalyptic number.

6549223 is a deficient number, since it is larger than the sum of its proper divisors (1).

6549223 is an equidigital number, since it uses as much as digits as its factorization.

6549223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 31.

The square root of 6549223 is about 2559.1449744006. The cubic root of 6549223 is about 187.0954644255.

The spelling of 6549223 in words is "six million, five hundred forty-nine thousand, two hundred twenty-three".