6347663213 has 2 divisors, whose sum is σ = 6347663214. Its totient is φ = 6347663212.

The previous prime is 6347663143. The next prime is 6347663227. The reversal of 6347663213 is 3123667436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4785595684 + 1562067529 = 69178^2 + 39523^2 .

It is a cyclic number.

It is not a de Polignac number, because 6347663213 - 2¹⁴ = 6347646829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6347663513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3173831606 + 3173831607.

It is an arithmetic number, because the mean of its divisors is an integer number (3173831607).

Almost surely, 2^6347663213 is an apocalyptic number.

It is an amenable number.

6347663213 is a deficient number, since it is larger than the sum of its proper divisors (1).

6347663213 is an equidigital number, since it uses as much as digits as its factorization.

6347663213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 41.

The square root of 6347663213 is about 79672.2235976880. The cubic root of 6347663213 is about 1851.5607197713.

The spelling of 6347663213 in words is "six billion, three hundred forty-seven million, six hundred sixty-three thousand, two hundred thirteen".