22791473 has 2 divisors, whose sum is σ = 22791474. Its totient is φ = 22791472.

The previous prime is 22791451. The next prime is 22791529. The reversal of 22791473 is 37419722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19651489 + 3139984 = 4433^2 + 1772^2 .

It is a cyclic number.

It is not a de Polignac number, because 22791473 - 2¹⁴ = 22775089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22791443) 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, 11395736 + 11395737.

It is an arithmetic number, because the mean of its divisors is an integer number (11395737).

Almost surely, 2^22791473 is an apocalyptic number.

It is an amenable number.

22791473 is a deficient number, since it is larger than the sum of its proper divisors (1).

22791473 is an equidigital number, since it uses as much as digits as its factorization.

22791473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 22791473 is about 4774.0415792073. The cubic root of 22791473 is about 283.5246337464.

The spelling of 22791473 in words is "twenty-two million, seven hundred ninety-one thousand, four hundred seventy-three".