8198500913 has 2 divisors, whose sum is σ = 8198500914. Its totient is φ = 8198500912.

The previous prime is 8198500897. The next prime is 8198500993. The reversal of 8198500913 is 3190058918.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6563754289 + 1634746624 = 81017^2 + 40432^2 .

It is a cyclic number.

It is not a de Polignac number, because 8198500913 - 2⁴ = 8198500897 is a prime.

It is not a weakly prime, because it can be changed into another prime (8198500993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4099250456 + 4099250457.

It is an arithmetic number, because the mean of its divisors is an integer number (4099250457).

Almost surely, 2^8198500913 is an apocalyptic number.

It is an amenable number.

8198500913 is a deficient number, since it is larger than the sum of its proper divisors (1).

8198500913 is an equidigital number, since it uses as much as digits as its factorization.

8198500913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 44.

The square root of 8198500913 is about 90545.5736797774. The cubic root of 8198500913 is about 2016.4067834435.

The spelling of 8198500913 in words is "eight billion, one hundred ninety-eight million, five hundred thousand, nine hundred thirteen".