22713765 has 16 divisors (see below), whose sum is σ = 37922688. Its totient is φ = 11587136.

The previous prime is 22713763. The next prime is 22713773. The reversal of 22713765 is 56731722.

It is a cyclic number.

It is not a de Polignac number, because 22713765 - 2¹ = 22713763 is a prime.

It is a Curzon number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22713763) 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, 32574 + ... + 33263.

It is an arithmetic number, because the mean of its divisors is an integer number (2370168).

Almost surely, 2^22713765 is an apocalyptic number.

It is an amenable number.

22713765 is a deficient number, since it is larger than the sum of its proper divisors (15208923).

22713765 is a wasteful number, since it uses less digits than its factorization.

22713765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65868.

The product of its digits is 17640, while the sum is 33.

The square root of 22713765 is about 4765.8960332764. The cubic root of 22713765 is about 283.2020391304.

The spelling of 22713765 in words is "twenty-two million, seven hundred thirteen thousand, seven hundred sixty-five".