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22849 = 73313

22849 has 4 divisors (see below), whose sum is σ = 23236. Its totient is φ = 22464.

The previous prime is 22817. The next prime is 22853. The reversal of 22849 is 94822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4624 + 18225 = 68^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 22849 - 25 = 22817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22859) 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, 84 + ... + 229.

It is an arithmetic number, because the mean of its divisors is an integer number (5809).

222849 is an apocalyptic number.

It is an amenable number.

22849 is a deficient number, since it is larger than the sum of its proper divisors (387).

22849 is an equidigital number, since it uses as much as digits as its factorization.

22849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386.

The product of its digits is 1152, while the sum is 25.

The square root of 22849 is about 151.1588568361. The cubic root of 22849 is about 28.3762977535.

The spelling of 22849 in words is "twenty-two thousand, eight hundred forty-nine".

Divisors: 1 73 313 22849