89658589 has 2 divisors, whose sum is σ = 89658590. Its totient is φ = 89658588.

The previous prime is 89658557. The next prime is 89658599. The reversal of 89658589 is 98585698.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53538489 + 36120100 = 7317^2 + 6010^2 .

It is a cyclic number.

It is not a de Polignac number, because 89658589 - 2⁵ = 89658557 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89658539) 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, 44829294 + 44829295.

It is an arithmetic number, because the mean of its divisors is an integer number (44829295).

Almost surely, 2^89658589 is an apocalyptic number.

It is an amenable number.

89658589 is a deficient number, since it is larger than the sum of its proper divisors (1).

89658589 is an equidigital number, since it uses as much as digits as its factorization.

89658589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6220800, while the sum is 58.

The square root of 89658589 is about 9468.8219436211. The cubic root of 89658589 is about 447.5730896087.

The spelling of 89658589 in words is "eighty-nine million, six hundred fifty-eight thousand, five hundred eighty-nine".