98545309 has 2 divisors, whose sum is σ = 98545310. Its totient is φ = 98545308.

The previous prime is 98545297. The next prime is 98545327. The reversal of 98545309 is 90354589.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98446084 + 99225 = 9922^2 + 315^2 .

It is a cyclic number.

It is not a de Polignac number, because 98545309 - 2¹¹ = 98543261 is a prime.

It is a super-2 number, since 2×98545309² = 19422355851810962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98545009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49272654 + 49272655.

It is an arithmetic number, because the mean of its divisors is an integer number (49272655).

Almost surely, 2^98545309 is an apocalyptic number.

It is an amenable number.

98545309 is a deficient number, since it is larger than the sum of its proper divisors (1).

98545309 is an equidigital number, since it uses as much as digits as its factorization.

98545309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 98545309 is about 9926.9989926463. The cubic root of 98545309 is about 461.8971882566.

The spelling of 98545309 in words is "ninety-eight million, five hundred forty-five thousand, three hundred nine".