98317309 has 2 divisors, whose sum is σ = 98317310. Its totient is φ = 98317308.

The previous prime is 98317301. The next prime is 98317319. The reversal of 98317309 is 90371389.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91738084 + 6579225 = 9578^2 + 2565^2 .

It is a cyclic number.

It is not a de Polignac number, because 98317309 - 2³ = 98317301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98317301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49158654 + 49158655.

It is an arithmetic number, because the mean of its divisors is an integer number (49158655).

Almost surely, 2^98317309 is an apocalyptic number.

It is an amenable number.

98317309 is a deficient number, since it is larger than the sum of its proper divisors (1).

98317309 is an equidigital number, since it uses as much as digits as its factorization.

98317309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 98317309 is about 9915.5085094008. The cubic root of 98317309 is about 461.5406893575.

The spelling of 98317309 in words is "ninety-eight million, three hundred seventeen thousand, three hundred nine".