20036017 has 4 divisors (see below), whose sum is σ = 20119396. Its totient is φ = 19952640.

The previous prime is 20036011. The next prime is 20036021. The reversal of 20036017 is 71063002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6130576 + 13905441 = 2476^2 + 3729^2 .

It is a cyclic number.

It is not a de Polignac number, because 20036017 - 2²³ = 11647409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20035985 and 20036003.

It is not an unprimeable number, because it can be changed into a prime (20036011) 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 3 ways as a sum of consecutive naturals, for example, 41328 + ... + 41809.

It is an arithmetic number, because the mean of its divisors is an integer number (5029849).

Almost surely, 2^20036017 is an apocalyptic number.

It is an amenable number.

20036017 is a deficient number, since it is larger than the sum of its proper divisors (83379).

20036017 is an equidigital number, since it uses as much as digits as its factorization.

20036017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83378.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 20036017 is about 4476.1609667214. The cubic root of 20036017 is about 271.6046059114.

Adding to 20036017 its reverse (71063002), we get a palindrome (91099019).

The spelling of 20036017 in words is "twenty million, thirty-six thousand, seventeen".