20832017 has 4 divisors (see below), whose sum is σ = 20924016. Its totient is φ = 20740020.

The previous prime is 20832001. The next prime is 20832023. The reversal of 20832017 is 71023802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20832017 - 2⁴ = 20832001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20831983 and 20832001.

It is not an unprimeable number, because it can be changed into a prime (20832047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45659 + ... + 46112.

It is an arithmetic number, because the mean of its divisors is an integer number (5231004).

Almost surely, 2^20832017 is an apocalyptic number.

It is an amenable number.

20832017 is a deficient number, since it is larger than the sum of its proper divisors (91999).

20832017 is an equidigital number, since it uses as much as digits as its factorization.

20832017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91998.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 20832017 is about 4564.2104465066. The cubic root of 20832017 is about 275.1548087033.

Adding to 20832017 its reverse (71023802), we get a palindrome (91855819).

The spelling of 20832017 in words is "twenty million, eight hundred thirty-two thousand, seventeen".