98938309 has 2 divisors, whose sum is σ = 98938310. Its totient is φ = 98938308.

The previous prime is 98938303. The next prime is 98938321. The reversal of 98938309 is 90383989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62758084 + 36180225 = 7922^2 + 6015^2 .

It is a cyclic number.

It is not a de Polignac number, because 98938309 - 2⁵ = 98938277 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98938303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49469154 + 49469155.

It is an arithmetic number, because the mean of its divisors is an integer number (49469155).

Almost surely, 2^98938309 is an apocalyptic number.

It is an amenable number.

98938309 is a deficient number, since it is larger than the sum of its proper divisors (1).

98938309 is an equidigital number, since it uses as much as digits as its factorization.

98938309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 98938309 is about 9946.7737985741. The cubic root of 98938309 is about 462.5103911958.

The spelling of 98938309 in words is "ninety-eight million, nine hundred thirty-eight thousand, three hundred nine".