98138069 has 2 divisors, whose sum is σ = 98138070. Its totient is φ = 98138068.

The previous prime is 98138017. The next prime is 98138077. The reversal of 98138069 is 96083189.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51051025 + 47087044 = 7145^2 + 6862^2 .

It is an emirp because it is prime and its reverse (96083189) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98138069 - 2⁸ = 98137813 is a prime.

It is a super-2 number, since 2×98138069² = 19262161174097522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98135069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49069034 + 49069035.

It is an arithmetic number, because the mean of its divisors is an integer number (49069035).

Almost surely, 2^98138069 is an apocalyptic number.

It is an amenable number.

98138069 is a deficient number, since it is larger than the sum of its proper divisors (1).

98138069 is an equidigital number, since it uses as much as digits as its factorization.

98138069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 98138069 is about 9906.4660197267. The cubic root of 98138069 is about 461.2600440426.

The spelling of 98138069 in words is "ninety-eight million, one hundred thirty-eight thousand, sixty-nine".