22714729 has 2 divisors, whose sum is σ = 22714730. Its totient is φ = 22714728.

The previous prime is 22714721. The next prime is 22714733. The reversal of 22714729 is 92741722.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22581504 + 133225 = 4752^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 22714729 - 2³ = 22714721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22714694 and 22714703.

It is not a weakly prime, because it can be changed into another prime (22714721) 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, 11357364 + 11357365.

It is an arithmetic number, because the mean of its divisors is an integer number (11357365).

Almost surely, 2^22714729 is an apocalyptic number.

It is an amenable number.

22714729 is a deficient number, since it is larger than the sum of its proper divisors (1).

22714729 is an equidigital number, since it uses as much as digits as its factorization.

22714729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 34.

The square root of 22714729 is about 4765.9971674352. The cubic root of 22714729 is about 283.2060455541.

The spelling of 22714729 in words is "twenty-two million, seven hundred fourteen thousand, seven hundred twenty-nine".