98988173 has 2 divisors, whose sum is σ = 98988174. Its totient is φ = 98988172.

The previous prime is 98988137. The next prime is 98988179. The reversal of 98988173 is 37188989.

Together with previous prime (98988137) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81036004 + 17952169 = 9002^2 + 4237^2 .

It is a cyclic number.

It is not a de Polignac number, because 98988173 - 2¹⁸ = 98726029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98988179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49494086 + 49494087.

It is an arithmetic number, because the mean of its divisors is an integer number (49494087).

Almost surely, 2^98988173 is an apocalyptic number.

It is an amenable number.

98988173 is a deficient number, since it is larger than the sum of its proper divisors (1).

98988173 is an equidigital number, since it uses as much as digits as its factorization.

98988173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 53.

The square root of 98988173 is about 9949.2800242028. The cubic root of 98988173 is about 462.5880784773.

The spelling of 98988173 in words is "ninety-eight million, nine hundred eighty-eight thousand, one hundred seventy-three".