22853981 has 4 divisors (see below), whose sum is σ = 22889952. Its totient is φ = 22818012.

The previous prime is 22853969. The next prime is 22853983. The reversal of 22853981 is 18935822.

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 not a de Polignac number, because 22853981 - 2⁶ = 22853917 is a prime.

It is a super-2 number, since 2×22853981² = 1044608895096722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22853983) 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, 17015 + ... + 18308.

It is an arithmetic number, because the mean of its divisors is an integer number (5722488).

Almost surely, 2^22853981 is an apocalyptic number.

It is an amenable number.

22853981 is a deficient number, since it is larger than the sum of its proper divisors (35971).

22853981 is an equidigital number, since it uses as much as digits as its factorization.

22853981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35970.

The product of its digits is 34560, while the sum is 38.

The square root of 22853981 is about 4780.5837509660. The cubic root of 22853981 is about 283.7835958074.

The spelling of 22853981 in words is "twenty-two million, eight hundred fifty-three thousand, nine hundred eighty-one".