20020017 has 16 divisors (see below), whose sum is σ = 28014080. Its totient is φ = 12700800.

The previous prime is 20020001. The next prime is 20020019. The reversal of 20020017 is 71002002.

It is not a de Polignac number, because 20020017 - 2⁴ = 20020001 is a prime.

It is a super-3 number, since 3×20020017³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20019984 and 20020011.

It is not an unprimeable number, because it can be changed into a prime (20020019) 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 in 15 ways as a sum of consecutive naturals, for example, 3909 + ... + 7437.

It is an arithmetic number, because the mean of its divisors is an integer number (1750880).

Almost surely, 2^20020017 is an apocalyptic number.

It is an amenable number.

20020017 is a deficient number, since it is larger than the sum of its proper divisors (7994063).

20020017 is a wasteful number, since it uses less digits than its factorization.

20020017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3624.

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 20020017 is about 4474.3733639472. The cubic root of 20020017 is about 271.5322889605.

Adding to 20020017 its reverse (71002002), we get a palindrome (91022019).

The spelling of 20020017 in words is "twenty million, twenty thousand, seventeen".