8002684513 has 2 divisors, whose sum is σ = 8002684514. Its totient is φ = 8002684512.

The previous prime is 8002684477. The next prime is 8002684523. The reversal of 8002684513 is 3154862008.

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., 7315038784 + 687645729 = 85528^2 + 26223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8002684513 is a prime.

It is a super-2 number, since 2×8002684513² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8002684523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4001342256 + 4001342257.

It is an arithmetic number, because the mean of its divisors is an integer number (4001342257).

Almost surely, 2^8002684513 is an apocalyptic number.

It is an amenable number.

8002684513 is a deficient number, since it is larger than the sum of its proper divisors (1).

8002684513 is an equidigital number, since it uses as much as digits as its factorization.

8002684513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 8002684513 is about 89457.7247251460. The cubic root of 8002684513 is about 2000.2236843984.

The spelling of 8002684513 in words is "eight billion, two million, six hundred eighty-four thousand, five hundred thirteen".