89735641 has 2 divisors, whose sum is σ = 89735642. Its totient is φ = 89735640.

The previous prime is 89735623. The next prime is 89735647. The reversal of 89735641 is 14653798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70560000 + 19175641 = 8400^2 + 4379^2 .

It is a cyclic number.

It is not a de Polignac number, because 89735641 - 2⁵ = 89735609 is a prime.

It is not a weakly prime, because it can be changed into another prime (89735647) 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, 44867820 + 44867821.

It is an arithmetic number, because the mean of its divisors is an integer number (44867821).

Almost surely, 2^89735641 is an apocalyptic number.

It is an amenable number.

89735641 is a deficient number, since it is larger than the sum of its proper divisors (1).

89735641 is an equidigital number, since it uses as much as digits as its factorization.

89735641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 89735641 is about 9472.8897913995. The cubic root of 89735641 is about 447.7012666845.

The spelling of 89735641 in words is "eighty-nine million, seven hundred thirty-five thousand, six hundred forty-one".