22784361 has 4 divisors (see below), whose sum is σ = 30379152. Its totient is φ = 15189572.

The previous prime is 22784357. The next prime is 22784383. The reversal of 22784361 is 16348722.

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 22784361 - 2² = 22784357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22784261) 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, 3797391 + ... + 3797396.

It is an arithmetic number, because the mean of its divisors is an integer number (7594788).

Almost surely, 2^22784361 is an apocalyptic number.

It is an amenable number.

22784361 is a deficient number, since it is larger than the sum of its proper divisors (7594791).

22784361 is an equidigital number, since it uses as much as digits as its factorization.

22784361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7594790.

The product of its digits is 16128, while the sum is 33.

The square root of 22784361 is about 4773.2966595425. The cubic root of 22784361 is about 283.4951397193.

The spelling of 22784361 in words is "twenty-two million, seven hundred eighty-four thousand, three hundred sixty-one".