20267473 has 2 divisors, whose sum is σ = 20267474. Its totient is φ = 20267472.

The previous prime is 20267441. The next prime is 20267537. The reversal of 20267473 is 37476202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19210689 + 1056784 = 4383^2 + 1028^2 .

It is a cyclic number.

It is not a de Polignac number, because 20267473 - 2⁵ = 20267441 is a prime.

It is not a weakly prime, because it can be changed into another prime (20267573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10133736 + 10133737.

It is an arithmetic number, because the mean of its divisors is an integer number (10133737).

Almost surely, 2^20267473 is an apocalyptic number.

It is an amenable number.

20267473 is a deficient number, since it is larger than the sum of its proper divisors (1).

20267473 is an equidigital number, since it uses as much as digits as its factorization.

20267473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 20267473 is about 4501.9410258243. The cubic root of 20267473 is about 272.6464628022.

The spelling of 20267473 in words is "twenty million, two hundred sixty-seven thousand, four hundred seventy-three".