89245817 has 2 divisors, whose sum is σ = 89245818. Its totient is φ = 89245816.

The previous prime is 89245787. The next prime is 89245823. The reversal of 89245817 is 71854298.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77246521 + 11999296 = 8789^2 + 3464^2 .

It is a cyclic number.

It is not a de Polignac number, because 89245817 - 2⁶ = 89245753 is a prime.

It is not a weakly prime, because it can be changed into another prime (89245837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44622908 + 44622909.

It is an arithmetic number, because the mean of its divisors is an integer number (44622909).

Almost surely, 2^89245817 is an apocalyptic number.

It is an amenable number.

89245817 is a deficient number, since it is larger than the sum of its proper divisors (1).

89245817 is an equidigital number, since it uses as much as digits as its factorization.

89245817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 44.

The square root of 89245817 is about 9447.0004234148. Note that the first 3 decimals coincide. The cubic root of 89245817 is about 446.8851842235.

It can be divided in two parts, 892458 and 17, that multiplied together give a triangular number (15171786 = T₅₅₀₈).

The spelling of 89245817 in words is "eighty-nine million, two hundred forty-five thousand, eight hundred seventeen".