98553989 has 2 divisors, whose sum is σ = 98553990. Its totient is φ = 98553988.

The previous prime is 98553937. The next prime is 98554003. The reversal of 98553989 is 98935589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63329764 + 35224225 = 7958^2 + 5935^2 .

It is a cyclic number.

It is not a de Polignac number, because 98553989 - 2⁸ = 98553733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98552989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49276994 + 49276995.

It is an arithmetic number, because the mean of its divisors is an integer number (49276995).

Almost surely, 2^98553989 is an apocalyptic number.

It is an amenable number.

98553989 is a deficient number, since it is larger than the sum of its proper divisors (1).

98553989 is an equidigital number, since it uses as much as digits as its factorization.

98553989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3499200, while the sum is 56.

The square root of 98553989 is about 9927.4361745619. The cubic root of 98553989 is about 461.9107493617.

The spelling of 98553989 in words is "ninety-eight million, five hundred fifty-three thousand, nine hundred eighty-nine".