98555189 has 2 divisors, whose sum is σ = 98555190. Its totient is φ = 98555188.

The previous prime is 98555173. The next prime is 98555209. The reversal of 98555189 is 98155589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85414564 + 13140625 = 9242^2 + 3625^2 .

It is a cyclic number.

It is not a de Polignac number, because 98555189 - 2⁴ = 98555173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98555089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49277594 + 49277595.

It is an arithmetic number, because the mean of its divisors is an integer number (49277595).

Almost surely, 2^98555189 is an apocalyptic number.

It is an amenable number.

98555189 is a deficient number, since it is larger than the sum of its proper divisors (1).

98555189 is an equidigital number, since it uses as much as digits as its factorization.

98555189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648000, while the sum is 50.

The square root of 98555189 is about 9927.4966129433. The cubic root of 98555189 is about 461.9126241062.

The spelling of 98555189 in words is "ninety-eight million, five hundred fifty-five thousand, one hundred eighty-nine".