89112689 has 2 divisors, whose sum is σ = 89112690. Its totient is φ = 89112688.

The previous prime is 89112677. The next prime is 89112697. The reversal of 89112689 is 98621198.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77141089 + 11971600 = 8783^2 + 3460^2 .

It is a cyclic number.

It is not a de Polignac number, because 89112689 - 2⁸ = 89112433 is a prime.

It is not a weakly prime, because it can be changed into another prime (89112629) 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, 44556344 + 44556345.

It is an arithmetic number, because the mean of its divisors is an integer number (44556345).

Almost surely, 2^89112689 is an apocalyptic number.

It is an amenable number.

89112689 is a deficient number, since it is larger than the sum of its proper divisors (1).

89112689 is an equidigital number, since it uses as much as digits as its factorization.

89112689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 44.

The square root of 89112689 is about 9439.9517477580. The cubic root of 89112689 is about 446.6628674091.

The spelling of 89112689 in words is "eighty-nine million, one hundred twelve thousand, six hundred eighty-nine".