89328817 has 2 divisors, whose sum is σ = 89328818. Its totient is φ = 89328816.

The previous prime is 89328781. The next prime is 89328821. The reversal of 89328817 is 71882398.

Together with previous prime (89328781) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76195441 + 13133376 = 8729^2 + 3624^2 .

It is a cyclic number.

It is not a de Polignac number, because 89328817 - 2⁷ = 89328689 is a prime.

It is not a weakly prime, because it can be changed into another prime (89328857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44664408 + 44664409.

It is an arithmetic number, because the mean of its divisors is an integer number (44664409).

Almost surely, 2^89328817 is an apocalyptic number.

It is an amenable number.

89328817 is a deficient number, since it is larger than the sum of its proper divisors (1).

89328817 is an equidigital number, since it uses as much as digits as its factorization.

89328817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 46.

The square root of 89328817 is about 9451.3923312917. The cubic root of 89328817 is about 447.0236780261.

The spelling of 89328817 in words is "eighty-nine million, three hundred twenty-eight thousand, eight hundred seventeen".