98619173 has 2 divisors, whose sum is σ = 98619174. Its totient is φ = 98619172.

The previous prime is 98619163. The next prime is 98619179. The reversal of 98619173 is 37191689.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59706529 + 38912644 = 7727^2 + 6238^2 .

It is a cyclic number.

It is not a de Polignac number, because 98619173 - 2¹⁴ = 98602789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98619179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49309586 + 49309587.

It is an arithmetic number, because the mean of its divisors is an integer number (49309587).

Almost surely, 2^98619173 is an apocalyptic number.

It is an amenable number.

98619173 is a deficient number, since it is larger than the sum of its proper divisors (1).

98619173 is an equidigital number, since it uses as much as digits as its factorization.

98619173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 44.

The square root of 98619173 is about 9930.7186547601. The cubic root of 98619173 is about 462.0125634534.

The spelling of 98619173 in words is "ninety-eight million, six hundred nineteen thousand, one hundred seventy-three".