22939865 has 16 divisors (see below), whose sum is σ = 29870400. Its totient is φ = 16811712.

The previous prime is 22939853. The next prime is 22939867. The reversal of 22939865 is 56893922.

It is a cyclic number.

It is not a de Polignac number, because 22939865 - 2⁶ = 22939801 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22939867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7766 + ... + 10304.

It is an arithmetic number, because the mean of its divisors is an integer number (1866900).

Almost surely, 2^22939865 is an apocalyptic number.

It is an amenable number.

22939865 is a deficient number, since it is larger than the sum of its proper divisors (6930535).

22939865 is a wasteful number, since it uses less digits than its factorization.

22939865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696.

The product of its digits is 233280, while the sum is 44.

The square root of 22939865 is about 4789.5579127932. The cubic root of 22939865 is about 284.1386324753.

The spelling of 22939865 in words is "twenty-two million, nine hundred thirty-nine thousand, eight hundred sixty-five".