98218291 has 2 divisors, whose sum is σ = 98218292. Its totient is φ = 98218290.

The previous prime is 98218249. The next prime is 98218319. The reversal of 98218291 is 19281289.

It is a strong prime.

It is an emirp because it is prime and its reverse (19281289) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98218291 is a prime.

It is not a weakly prime, because it can be changed into another prime (98210291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49109145 + 49109146.

It is an arithmetic number, because the mean of its divisors is an integer number (49109146).

Almost surely, 2^98218291 is an apocalyptic number.

98218291 is a deficient number, since it is larger than the sum of its proper divisors (1).

98218291 is an equidigital number, since it uses as much as digits as its factorization.

98218291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 40.

The square root of 98218291 is about 9910.5141642601. The cubic root of 98218291 is about 461.3856939750.

The spelling of 98218291 in words is "ninety-eight million, two hundred eighteen thousand, two hundred ninety-one".