8689398353 has 2 divisors, whose sum is σ = 8689398354. Its totient is φ = 8689398352.

The previous prime is 8689398349. The next prime is 8689398391. The reversal of 8689398353 is 3538939868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8631896464 + 57501889 = 92908^2 + 7583^2 .

It is a cyclic number.

It is not a de Polignac number, because 8689398353 - 2² = 8689398349 is a prime.

It is a super-2 number, since 2×8689398353² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8689398253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4344699176 + 4344699177.

It is an arithmetic number, because the mean of its divisors is an integer number (4344699177).

Almost surely, 2^8689398353 is an apocalyptic number.

It is an amenable number.

8689398353 is a deficient number, since it is larger than the sum of its proper divisors (1).

8689398353 is an equidigital number, since it uses as much as digits as its factorization.

8689398353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33592320, while the sum is 62.

The square root of 8689398353 is about 93216.9424139196. The cubic root of 8689398353 is about 2055.8743546166.

The spelling of 8689398353 in words is "eight billion, six hundred eighty-nine million, three hundred ninety-eight thousand, three hundred fifty-three".