89539517 has 2 divisors, whose sum is σ = 89539518. Its totient is φ = 89539516.

The previous prime is 89539447. The next prime is 89539523. The reversal of 89539517 is 71593598.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68873401 + 20666116 = 8299^2 + 4546^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89539517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89539577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44769758 + 44769759.

It is an arithmetic number, because the mean of its divisors is an integer number (44769759).

Almost surely, 2^89539517 is an apocalyptic number.

It is an amenable number.

89539517 is a deficient number, since it is larger than the sum of its proper divisors (1).

89539517 is an equidigital number, since it uses as much as digits as its factorization.

89539517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 47.

The square root of 89539517 is about 9462.5322720718. The cubic root of 89539517 is about 447.3748671694.

The spelling of 89539517 in words is "eighty-nine million, five hundred thirty-nine thousand, five hundred seventeen".