22716765 has 12 divisors (see below), whose sum is σ = 39375804. Its totient is φ = 12115584.

The previous prime is 22716763. The next prime is 22716791. The reversal of 22716765 is 56761722.

It can be written as a sum of positive squares in 2 ways, for example, as 4235364 + 18481401 = 2058^2 + 4299^2 .

It is not a de Polignac number, because 22716765 - 2¹ = 22716763 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22716763) 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 11 ways as a sum of consecutive naturals, for example, 252364 + ... + 252453.

It is an arithmetic number, because the mean of its divisors is an integer number (3281317).

Almost surely, 2^22716765 is an apocalyptic number.

It is an amenable number.

22716765 is a deficient number, since it is larger than the sum of its proper divisors (16659039).

22716765 is a wasteful number, since it uses less digits than its factorization.

22716765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504828 (or 504825 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 22716765 is about 4766.2107590832. The cubic root of 22716765 is about 283.2145068816.

The spelling of 22716765 in words is "twenty-two million, seven hundred sixteen thousand, seven hundred sixty-five".