8622478213 has 2 divisors, whose sum is σ = 8622478214. Its totient is φ = 8622478212.

The previous prime is 8622478127. The next prime is 8622478219. The reversal of 8622478213 is 3128742268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6202035009 + 2420443204 = 78753^2 + 49198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8622478213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8622478213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8622478219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4311239106 + 4311239107.

It is an arithmetic number, because the mean of its divisors is an integer number (4311239107).

Almost surely, 2^8622478213 is an apocalyptic number.

It is an amenable number.

8622478213 is a deficient number, since it is larger than the sum of its proper divisors (1).

8622478213 is an equidigital number, since it uses as much as digits as its factorization.

8622478213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 43.

The square root of 8622478213 is about 92857.3002676688. The cubic root of 8622478213 is about 2050.5830753079.

The spelling of 8622478213 in words is "eight billion, six hundred twenty-two million, four hundred seventy-eight thousand, two hundred thirteen".