20484017 has 2 divisors, whose sum is σ = 20484018. Its totient is φ = 20484016.

The previous prime is 20483993. The next prime is 20484049. The reversal of 20484017 is 71048402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11669056 + 8814961 = 3416^2 + 2969^2 .

It is a cyclic number.

It is not a de Polignac number, because 20484017 - 2¹⁶ = 20418481 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20484067) 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, 10242008 + 10242009.

It is an arithmetic number, because the mean of its divisors is an integer number (10242009).

Almost surely, 2^20484017 is an apocalyptic number.

It is an amenable number.

20484017 is a deficient number, since it is larger than the sum of its proper divisors (1).

20484017 is an equidigital number, since it uses as much as digits as its factorization.

20484017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 20484017 is about 4525.9271978237. The cubic root of 20484017 is about 273.6140382504.

The spelling of 20484017 in words is "twenty million, four hundred eighty-four thousand, seventeen".