98605589 has 2 divisors, whose sum is σ = 98605590. Its totient is φ = 98605588.

The previous prime is 98605571. The next prime is 98605603. The reversal of 98605589 is 98550689.

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., 49815364 + 48790225 = 7058^2 + 6985^2 .

It is a cyclic number.

It is not a de Polignac number, because 98605589 - 2¹² = 98601493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98605489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49302794 + 49302795.

It is an arithmetic number, because the mean of its divisors is an integer number (49302795).

Almost surely, 2^98605589 is an apocalyptic number.

It is an amenable number.

98605589 is a deficient number, since it is larger than the sum of its proper divisors (1).

98605589 is an equidigital number, since it uses as much as digits as its factorization.

98605589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 50.

The square root of 98605589 is about 9930.0346927893. The cubic root of 98605589 is about 461.9913496378.

The spelling of 98605589 in words is "ninety-eight million, six hundred five thousand, five hundred eighty-nine".