98279189 has 2 divisors, whose sum is σ = 98279190. Its totient is φ = 98279188.

The previous prime is 98279177. The next prime is 98279219. The reversal of 98279189 is 98197289.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84088900 + 14190289 = 9170^2 + 3767^2 .

It is a cyclic number.

It is not a de Polignac number, because 98279189 - 2⁸ = 98278933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 98279189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98279149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49139594 + 49139595.

It is an arithmetic number, because the mean of its divisors is an integer number (49139595).

Almost surely, 2^98279189 is an apocalyptic number.

It is an amenable number.

98279189 is a deficient number, since it is larger than the sum of its proper divisors (1).

98279189 is an equidigital number, since it uses as much as digits as its factorization.

98279189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 53.

The square root of 98279189 is about 9913.5860817365. The cubic root of 98279189 is about 461.4810314817.

The spelling of 98279189 in words is "ninety-eight million, two hundred seventy-nine thousand, one hundred eighty-nine".