22979866 has 32 divisors (see below), whose sum is σ = 43803648. Its totient is φ = 8795520.

The previous prime is 22979857. The next prime is 22979867. The reversal of 22979866 is 66897922.

It is not an unprimeable number, because it can be changed into a prime (22979867) 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, 3606 + ... + 7678.

It is an arithmetic number, because the mean of its divisors is an integer number (1368864).

Almost surely, 2^22979866 is an apocalyptic number.

22979866 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22979866 is a deficient number, since it is larger than the sum of its proper divisors (20823782).

22979866 is a wasteful number, since it uses less digits than its factorization.

22979866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126.

The product of its digits is 653184, while the sum is 49.

The square root of 22979866 is about 4793.7319491186. The cubic root of 22979866 is about 284.3036905449.

The spelling of 22979866 in words is "twenty-two million, nine hundred seventy-nine thousand, eight hundred sixty-six".