20098417 has 2 divisors, whose sum is σ = 20098418. Its totient is φ = 20098416.

The previous prime is 20098411. The next prime is 20098439. The reversal of 20098417 is 71489002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19749136 + 349281 = 4444^2 + 591^2 .

It is a cyclic number.

It is not a de Polignac number, because 20098417 - 2²³ = 11709809 is a prime.

It is not a weakly prime, because it can be changed into another prime (20098411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10049208 + 10049209.

It is an arithmetic number, because the mean of its divisors is an integer number (10049209).

Almost surely, 2^20098417 is an apocalyptic number.

It is an amenable number.

20098417 is a deficient number, since it is larger than the sum of its proper divisors (1).

20098417 is an equidigital number, since it uses as much as digits as its factorization.

20098417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 20098417 is about 4483.1258068450. The cubic root of 20098417 is about 271.8862747251.

The spelling of 20098417 in words is "twenty million, ninety-eight thousand, four hundred seventeen".