22846321 has 2 divisors, whose sum is σ = 22846322. Its totient is φ = 22846320.

The previous prime is 22846289. The next prime is 22846357. The reversal of 22846321 is 12364822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12702096 + 10144225 = 3564^2 + 3185^2 .

It is a cyclic number.

It is not a de Polignac number, because 22846321 - 2⁵ = 22846289 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22846321.

It is not a weakly prime, because it can be changed into another prime (22846921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11423160 + 11423161.

It is an arithmetic number, because the mean of its divisors is an integer number (11423161).

Almost surely, 2^22846321 is an apocalyptic number.

It is an amenable number.

22846321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22846321 is an equidigital number, since it uses as much as digits as its factorization.

22846321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 28.

The square root of 22846321 is about 4779.7825264336. The cubic root of 22846321 is about 283.7518868861.

It can be divided in two parts, 228463 and 21, that added together give a square (228484 = 478²).

The spelling of 22846321 in words is "twenty-two million, eight hundred forty-six thousand, three hundred twenty-one".