9673898681 has 2 divisors, whose sum is σ = 9673898682. Its totient is φ = 9673898680.

The previous prime is 9673898639. The next prime is 9673898701. The reversal of 9673898681 is 1868983769.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5250451600 + 4423447081 = 72460^2 + 66509^2 .

It is a cyclic number.

It is not a de Polignac number, because 9673898681 - 2¹⁴ = 9673882297 is a prime.

It is a super-2 number, since 2×9673898681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9673898581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4836949340 + 4836949341.

It is an arithmetic number, because the mean of its divisors is an integer number (4836949341).

Almost surely, 2^9673898681 is an apocalyptic number.

It is an amenable number.

9673898681 is a deficient number, since it is larger than the sum of its proper divisors (1).

9673898681 is an equidigital number, since it uses as much as digits as its factorization.

9673898681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31352832, while the sum is 65.

The square root of 9673898681 is about 98355.9793861054. The cubic root of 9673898681 is about 2130.7566122634.

The spelling of 9673898681 in words is "nine billion, six hundred seventy-three million, eight hundred ninety-eight thousand, six hundred eighty-one".