22336729 has 2 divisors, whose sum is σ = 22336730. Its totient is φ = 22336728.

The previous prime is 22336693. The next prime is 22336747. The reversal of 22336729 is 92763322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21874329 + 462400 = 4677^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 22336729 - 2¹⁷ = 22205657 is a prime.

It is a super-3 number, since 3×22336729³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22336694 and 22336703.

It is not a weakly prime, because it can be changed into another prime (22336829) 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, 11168364 + 11168365.

It is an arithmetic number, because the mean of its divisors is an integer number (11168365).

Almost surely, 2^22336729 is an apocalyptic number.

It is an amenable number.

22336729 is a deficient number, since it is larger than the sum of its proper divisors (1).

22336729 is an equidigital number, since it uses as much as digits as its factorization.

22336729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 34.

The square root of 22336729 is about 4726.1748803869. The cubic root of 22336729 is about 281.6262884982.

The spelling of 22336729 in words is "twenty-two million, three hundred thirty-six thousand, seven hundred twenty-nine".