7864484317 has 2 divisors, whose sum is σ = 7864484318. Its totient is φ = 7864484316.

The previous prime is 7864484279. The next prime is 7864484339. The reversal of 7864484317 is 7134844687.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4191397081 + 3673087236 = 64741^2 + 60606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7864484317 is a prime.

It is a super-2 number, since 2×7864484317² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7864484417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3932242158 + 3932242159.

It is an arithmetic number, because the mean of its divisors is an integer number (3932242159).

Almost surely, 2^7864484317 is an apocalyptic number.

It is an amenable number.

7864484317 is a deficient number, since it is larger than the sum of its proper divisors (1).

7864484317 is an equidigital number, since it uses as much as digits as its factorization.

7864484317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3612672, while the sum is 52.

The square root of 7864484317 is about 88681.9277925328. The cubic root of 7864484317 is about 1988.6426538421.

The spelling of 7864484317 in words is "seven billion, eight hundred sixty-four million, four hundred eighty-four thousand, three hundred seventeen".