20170098 has 24 divisors (see below), whose sum is σ = 47064108. Its totient is φ = 6206112.

The previous prime is 20170081. The next prime is 20170121. The reversal of 20170098 is 89007102.

It can be written as a sum of positive squares in 2 ways, for example, as 14538969 + 5631129 = 3813^2 + 2373^2 .

It is a Curzon number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 42865 + ... + 43332.

Almost surely, 2^20170098 is an apocalyptic number.

20170098 is an abundant number, since it is smaller than the sum of its proper divisors (26894010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20170098 is a wasteful number, since it uses less digits than its factorization.

20170098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86218 (or 86215 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 20170098 is about 4491.1132250256. The cubic root of 20170098 is about 272.2091186683.

The spelling of 20170098 in words is "twenty million, one hundred seventy thousand, ninety-eight".