98287109 has 2 divisors, whose sum is σ = 98287110. Its totient is φ = 98287108.

The previous prime is 98287087. The next prime is 98287129. The reversal of 98287109 is 90178289.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98109025 + 178084 = 9905^2 + 422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98287109 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98287109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98287129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49143554 + 49143555.

It is an arithmetic number, because the mean of its divisors is an integer number (49143555).

Almost surely, 2^98287109 is an apocalyptic number.

It is an amenable number.

98287109 is a deficient number, since it is larger than the sum of its proper divisors (1).

98287109 is an equidigital number, since it uses as much as digits as its factorization.

98287109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 98287109 is about 9913.9855255089. The cubic root of 98287109 is about 461.4934275668.

The spelling of 98287109 in words is "ninety-eight million, two hundred eighty-seven thousand, one hundred nine".