98545813 has 2 divisors, whose sum is σ = 98545814. Its totient is φ = 98545812.

The previous prime is 98545789. The next prime is 98545829. The reversal of 98545813 is 31854589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98545329 + 484 = 9927^2 + 22^2 .

It is a cyclic number.

It is not a de Polignac number, because 98545813 - 2⁵ = 98545781 is a prime.

It is a super-2 number, since 2×98545813² = 19422554519661938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 98545813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98545883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49272906 + 49272907.

It is an arithmetic number, because the mean of its divisors is an integer number (49272907).

Almost surely, 2^98545813 is an apocalyptic number.

It is an amenable number.

98545813 is a deficient number, since it is larger than the sum of its proper divisors (1).

98545813 is an equidigital number, since it uses as much as digits as its factorization.

98545813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 43.

The square root of 98545813 is about 9927.0243779292. The cubic root of 98545813 is about 461.8979756974.

The spelling of 98545813 in words is "ninety-eight million, five hundred forty-five thousand, eight hundred thirteen".