20463017 has 2 divisors, whose sum is σ = 20463018. Its totient is φ = 20463016.

The previous prime is 20462993. The next prime is 20463043. The reversal of 20463017 is 71036402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20214016 + 249001 = 4496^2 + 499^2 .

It is a cyclic number.

It is not a de Polignac number, because 20463017 - 2²² = 16268713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20462983 and 20463001.

It is not a weakly prime, because it can be changed into another prime (20463097) 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, 10231508 + 10231509.

It is an arithmetic number, because the mean of its divisors is an integer number (10231509).

Almost surely, 2^20463017 is an apocalyptic number.

It is an amenable number.

20463017 is a deficient number, since it is larger than the sum of its proper divisors (1).

20463017 is an equidigital number, since it uses as much as digits as its factorization.

20463017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20463017 is about 4523.6066363025. The cubic root of 20463017 is about 273.5205041962.

Adding to 20463017 its reverse (71036402), we get a palindrome (91499419).

The spelling of 20463017 in words is "twenty million, four hundred sixty-three thousand, seventeen".