89135617 has 2 divisors, whose sum is σ = 89135618. Its totient is φ = 89135616.

The previous prime is 89135597. The next prime is 89135659. The reversal of 89135617 is 71653198.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89132481 + 3136 = 9441^2 + 56^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89135617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89135617.

It is not a weakly prime, because it can be changed into another prime (89136617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44567808 + 44567809.

It is an arithmetic number, because the mean of its divisors is an integer number (44567809).

Almost surely, 2^89135617 is an apocalyptic number.

It is an amenable number.

89135617 is a deficient number, since it is larger than the sum of its proper divisors (1).

89135617 is an equidigital number, since it uses as much as digits as its factorization.

89135617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 40.

The square root of 89135617 is about 9441.1660826404. The cubic root of 89135617 is about 446.7011717484.

The spelling of 89135617 in words is "eighty-nine million, one hundred thirty-five thousand, six hundred seventeen".