22697273 has 2 divisors, whose sum is σ = 22697274. Its totient is φ = 22697272.

The previous prime is 22697237. The next prime is 22697291. The reversal of 22697273 is 37279622.

It is a happy number.

Together with previous prime (22697237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12730624 + 9966649 = 3568^2 + 3157^2 .

It is a cyclic number.

It is not a de Polignac number, because 22697273 - 2¹⁶ = 22631737 is a prime.

It is not a weakly prime, because it can be changed into another prime (22693273) 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, 11348636 + 11348637.

It is an arithmetic number, because the mean of its divisors is an integer number (11348637).

Almost surely, 2^22697273 is an apocalyptic number.

It is an amenable number.

22697273 is a deficient number, since it is larger than the sum of its proper divisors (1).

22697273 is an equidigital number, since it uses as much as digits as its factorization.

22697273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 38.

The square root of 22697273 is about 4764.1655092996. The cubic root of 22697273 is about 283.1334801327.

The spelling of 22697273 in words is "twenty-two million, six hundred ninety-seven thousand, two hundred seventy-three".