89541689 has 2 divisors, whose sum is σ = 89541690. Its totient is φ = 89541688.

The previous prime is 89541677. The next prime is 89541701. The reversal of 89541689 is 98614598.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (89541677) and next prime (89541701).

It can be written as a sum of positive squares in only one way, i.e., 60295225 + 29246464 = 7765^2 + 5408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89541689 is a prime.

It is not a weakly prime, because it can be changed into another prime (89541629) 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, 44770844 + 44770845.

It is an arithmetic number, because the mean of its divisors is an integer number (44770845).

Almost surely, 2^89541689 is an apocalyptic number.

It is an amenable number.

89541689 is a deficient number, since it is larger than the sum of its proper divisors (1).

89541689 is an equidigital number, since it uses as much as digits as its factorization.

89541689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 50.

The square root of 89541689 is about 9462.6470398087. The cubic root of 89541689 is about 447.3784845307.

The spelling of 89541689 in words is "eighty-nine million, five hundred forty-one thousand, six hundred eighty-nine".