22712329 has 2 divisors, whose sum is σ = 22712330. Its totient is φ = 22712328.

The previous prime is 22712311. The next prime is 22712341. The reversal of 22712329 is 92321722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21641104 + 1071225 = 4652^2 + 1035^2 .

It is a cyclic number.

It is not a de Polignac number, because 22712329 - 2⁵ = 22712297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22712297 and 22712306.

It is not a weakly prime, because it can be changed into another prime (22712309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11356164 + 11356165.

It is an arithmetic number, because the mean of its divisors is an integer number (11356165).

Almost surely, 2^22712329 is an apocalyptic number.

It is an amenable number.

22712329 is a deficient number, since it is larger than the sum of its proper divisors (1).

22712329 is an equidigital number, since it uses as much as digits as its factorization.

22712329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 22712329 is about 4765.7453771682. The cubic root of 22712329 is about 283.1960708449.

The spelling of 22712329 in words is "twenty-two million, seven hundred twelve thousand, three hundred twenty-nine".