8100000917 has 2 divisors, whose sum is σ = 8100000918. Its totient is φ = 8100000916.

The previous prime is 8100000913. The next prime is 8100000967. The reversal of 8100000917 is 7190000018.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7694622961 + 405377956 = 87719^2 + 20134^2 .

It is a cyclic number.

It is not a de Polignac number, because 8100000917 - 2² = 8100000913 is a prime.

It is a super-2 number, since 2×8100000917² (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 (8100000911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4050000458 + 4050000459.

It is an arithmetic number, because the mean of its divisors is an integer number (4050000459).

Almost surely, 2^8100000917 is an apocalyptic number.

It is an amenable number.

8100000917 is a deficient number, since it is larger than the sum of its proper divisors (1).

8100000917 is an equidigital number, since it uses as much as digits as its factorization.

8100000917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 8100000917 is about 90000.0050944443. The cubic root of 8100000917 is about 2008.2989260329.

The spelling of 8100000917 in words is "eight billion, one hundred million, nine hundred seventeen", and thus it is an aban number.