6449213 has 2 divisors, whose sum is σ = 6449214. Its totient is φ = 6449212.

The previous prime is 6449197. The next prime is 6449237. The reversal of 6449213 is 3129446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6416089 + 33124 = 2533^2 + 182^2 .

It is a cyclic number.

It is not a de Polignac number, because 6449213 - 2⁴ = 6449197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6449243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3224606 + 3224607.

It is an arithmetic number, because the mean of its divisors is an integer number (3224607).

Almost surely, 2^6449213 is an apocalyptic number.

It is an amenable number.

6449213 is a deficient number, since it is larger than the sum of its proper divisors (1).

6449213 is an equidigital number, since it uses as much as digits as its factorization.

6449213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 6449213 is about 2539.5300746398. The cubic root of 6449213 is about 186.1382273073.

The spelling of 6449213 in words is "six million, four hundred forty-nine thousand, two hundred thirteen".