89442589 has 2 divisors, whose sum is σ = 89442590. Its totient is φ = 89442588.

The previous prime is 89442553. The next prime is 89442601. The reversal of 89442589 is 98524498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57123364 + 32319225 = 7558^2 + 5685^2 .

It is a cyclic number.

It is not a de Polignac number, because 89442589 - 2⁷ = 89442461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89445589) 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, 44721294 + 44721295.

It is an arithmetic number, because the mean of its divisors is an integer number (44721295).

Almost surely, 2^89442589 is an apocalyptic number.

It is an amenable number.

89442589 is a deficient number, since it is larger than the sum of its proper divisors (1).

89442589 is an equidigital number, since it uses as much as digits as its factorization.

89442589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 49.

The square root of 89442589 is about 9457.4092118296. The cubic root of 89442589 is about 447.2133786665.

The spelling of 89442589 in words is "eighty-nine million, four hundred forty-two thousand, five hundred eighty-nine".