89980589 has 2 divisors, whose sum is σ = 89980590. Its totient is φ = 89980588.

The previous prime is 89980573. The next prime is 89980601. The reversal of 89980589 is 98508998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78623689 + 11356900 = 8867^2 + 3370^2 .

It is a cyclic number.

It is not a de Polignac number, because 89980589 - 2⁴ = 89980573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89980529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44990294 + 44990295.

It is an arithmetic number, because the mean of its divisors is an integer number (44990295).

Almost surely, 2^89980589 is an apocalyptic number.

It is an amenable number.

89980589 is a deficient number, since it is larger than the sum of its proper divisors (1).

89980589 is an equidigital number, since it uses as much as digits as its factorization.

89980589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 56.

The square root of 89980589 is about 9485.8098758092. The cubic root of 89980589 is about 448.1082543586.

The spelling of 89980589 in words is "eighty-nine million, nine hundred eighty thousand, five hundred eighty-nine".