98847181 has 2 divisors, whose sum is σ = 98847182. Its totient is φ = 98847180.

The previous prime is 98847137. The next prime is 98847191. The reversal of 98847181 is 18174889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94887081 + 3960100 = 9741^2 + 1990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98847181 is a prime.

It is a super-2 number, since 2×98847181² = 19541530383293522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98847121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49423590 + 49423591.

It is an arithmetic number, because the mean of its divisors is an integer number (49423591).

Almost surely, 2^98847181 is an apocalyptic number.

It is an amenable number.

98847181 is a deficient number, since it is larger than the sum of its proper divisors (1).

98847181 is an equidigital number, since it uses as much as digits as its factorization.

98847181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 46.

The square root of 98847181 is about 9942.1919615344. The cubic root of 98847181 is about 462.3683478217.

The spelling of 98847181 in words is "ninety-eight million, eight hundred forty-seven thousand, one hundred eighty-one".