98194309 has 2 divisors, whose sum is σ = 98194310. Its totient is φ = 98194308.

The previous prime is 98194307. The next prime is 98194333. The reversal of 98194309 is 90349189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57426084 + 40768225 = 7578^2 + 6385^2 .

It is a cyclic number.

It is not a de Polignac number, because 98194309 - 2¹ = 98194307 is a prime.

Together with 98194307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98194307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49097154 + 49097155.

It is an arithmetic number, because the mean of its divisors is an integer number (49097155).

Almost surely, 2^98194309 is an apocalyptic number.

It is an amenable number.

98194309 is a deficient number, since it is larger than the sum of its proper divisors (1).

98194309 is an equidigital number, since it uses as much as digits as its factorization.

98194309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 98194309 is about 9909.3041632599. The cubic root of 98194309 is about 461.3481386741.

The spelling of 98194309 in words is "ninety-eight million, one hundred ninety-four thousand, three hundred nine".