89105617 has 2 divisors, whose sum is σ = 89105618. Its totient is φ = 89105616.

The previous prime is 89105581. The next prime is 89105629. The reversal of 89105617 is 71650198.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85951441 + 3154176 = 9271^2 + 1776^2 .

It is a cyclic number.

It is not a de Polignac number, because 89105617 - 2¹¹ = 89103569 is a prime.

It is not a weakly prime, because it can be changed into another prime (89105677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44552808 + 44552809.

It is an arithmetic number, because the mean of its divisors is an integer number (44552809).

Almost surely, 2^89105617 is an apocalyptic number.

It is an amenable number.

89105617 is a deficient number, since it is larger than the sum of its proper divisors (1).

89105617 is an equidigital number, since it uses as much as digits as its factorization.

89105617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 89105617 is about 9439.5771621403. The cubic root of 89105617 is about 446.6510513464.

The spelling of 89105617 in words is "eighty-nine million, one hundred five thousand, six hundred seventeen".