22984729 has 2 divisors, whose sum is σ = 22984730. Its totient is φ = 22984728.

The previous prime is 22984727. The next prime is 22984763. The reversal of 22984729 is 92748922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22581504 + 403225 = 4752^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 22984729 - 2¹ = 22984727 is a prime.

Together with 22984727, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22984727) 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, 11492364 + 11492365.

It is an arithmetic number, because the mean of its divisors is an integer number (11492365).

Almost surely, 2^22984729 is an apocalyptic number.

It is an amenable number.

22984729 is a deficient number, since it is larger than the sum of its proper divisors (1).

22984729 is an equidigital number, since it uses as much as digits as its factorization.

22984729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 22984729 is about 4794.2391471432. The cubic root of 22984729 is about 284.3237439159.

The spelling of 22984729 in words is "twenty-two million, nine hundred eighty-four thousand, seven hundred twenty-nine".