89619898171 has 2 divisors, whose sum is σ = 89619898172. Its totient is φ = 89619898170.

The previous prime is 89619898163. The next prime is 89619898183. The reversal of 89619898171 is 17189891698.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89619898171 - 2³ = 89619898163 is a prime.

It is a super-2 number, since 2×89619898171² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89619898097 and 89619898106.

It is not a weakly prime, because it can be changed into another prime (89619898271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44809949085 + 44809949086.

It is an arithmetic number, because the mean of its divisors is an integer number (44809949086).

Almost surely, 2^89619898171 is an apocalyptic number.

89619898171 is a deficient number, since it is larger than the sum of its proper divisors (1).

89619898171 is an equidigital number, since it uses as much as digits as its factorization.

89619898171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 67.

The spelling of 89619898171 in words is "eighty-nine billion, six hundred nineteen million, eight hundred ninety-eight thousand, one hundred seventy-one".