99998417 has 2 divisors, whose sum is σ = 99998418. Its totient is φ = 99998416.

The previous prime is 99998413. The next prime is 99998429. The reversal of 99998417 is 71489999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96904336 + 3094081 = 9844^2 + 1759^2 .

It is a cyclic number.

It is not a de Polignac number, because 99998417 - 2² = 99998413 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99998413) 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, 49999208 + 49999209.

It is an arithmetic number, because the mean of its divisors is an integer number (49999209).

Almost surely, 2^99998417 is an apocalyptic number.

It is an amenable number.

99998417 is a deficient number, since it is larger than the sum of its proper divisors (1).

99998417 is an equidigital number, since it uses as much as digits as its factorization.

99998417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 56.

The square root of 99998417 is about 9999.9208496868. The cubic root of 99998417 is about 464.1564341366.

It can be divided in two parts, 999984 and 17, that added together give a palindrome (1000001).

The spelling of 99998417 in words is "ninety-nine million, nine hundred ninety-eight thousand, four hundred seventeen".