22749727 has 16 divisors (see below), whose sum is σ = 30546432. Its totient is φ = 16362720.

The previous prime is 22749679. The next prime is 22749761. The reversal of 22749727 is 72794722.

It is not a de Polignac number, because 22749727 - 2¹⁹ = 22225439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22749727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22749787) 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 in 15 ways as a sum of consecutive naturals, for example, 10363 + ... + 12364.

It is an arithmetic number, because the mean of its divisors is an integer number (1909152).

Almost surely, 2^22749727 is an apocalyptic number.

22749727 is a deficient number, since it is larger than the sum of its proper divisors (7796705).

22749727 is a wasteful number, since it uses less digits than its factorization.

22749727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22758.

The product of its digits is 98784, while the sum is 40.

The square root of 22749727 is about 4769.6673888228. The cubic root of 22749727 is about 283.3514219901.

The spelling of 22749727 in words is "twenty-two million, seven hundred forty-nine thousand, seven hundred twenty-seven".