22865641 has 4 divisors (see below), whose sum is σ = 23352192. Its totient is φ = 22379092.

The previous prime is 22865603. The next prime is 22865651. The reversal of 22865641 is 14656822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22865641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22865597 and 22865606.

It is not an unprimeable number, because it can be changed into a prime (22865651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243205 + ... + 243298.

It is an arithmetic number, because the mean of its divisors is an integer number (5838048).

Almost surely, 2^22865641 is an apocalyptic number.

It is an amenable number.

22865641 is a deficient number, since it is larger than the sum of its proper divisors (486551).

22865641 is an equidigital number, since it uses as much as digits as its factorization.

22865641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486550.

The product of its digits is 23040, while the sum is 34.

The square root of 22865641 is about 4781.8031117979. The cubic root of 22865641 is about 283.8318493138.

The spelling of 22865641 in words is "twenty-two million, eight hundred sixty-five thousand, six hundred forty-one".