6677213 has 2 divisors, whose sum is σ = 6677214. Its totient is φ = 6677212.

The previous prime is 6677191. The next prime is 6677233. The reversal of 6677213 is 3127766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5968249 + 708964 = 2443^2 + 842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6677213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6677213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6677233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3338606 + 3338607.

It is an arithmetic number, because the mean of its divisors is an integer number (3338607).

Almost surely, 2^6677213 is an apocalyptic number.

It is an amenable number.

6677213 is a deficient number, since it is larger than the sum of its proper divisors (1).

6677213 is an equidigital number, since it uses as much as digits as its factorization.

6677213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 32.

The square root of 6677213 is about 2584.0303790784. The cubic root of 6677213 is about 188.3063982851.

The spelling of 6677213 in words is "six million, six hundred seventy-seven thousand, two hundred thirteen".