22885321 has 4 divisors (see below), whose sum is σ = 23674500. Its totient is φ = 22096144.

The previous prime is 22885301. The next prime is 22885337. The reversal of 22885321 is 12358822.

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 8785296 + 14100025 = 2964^2 + 3755^2 .

It is not a de Polignac number, because 22885321 - 2¹⁵ = 22852553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22885301) 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, 394546 + ... + 394603.

It is an arithmetic number, because the mean of its divisors is an integer number (5918625).

Almost surely, 2^22885321 is an apocalyptic number.

It is an amenable number.

22885321 is a deficient number, since it is larger than the sum of its proper divisors (789179).

22885321 is an equidigital number, since it uses as much as digits as its factorization.

22885321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789178.

The product of its digits is 7680, while the sum is 31.

The square root of 22885321 is about 4783.8604703733. The cubic root of 22885321 is about 283.9132554291.

The spelling of 22885321 in words is "twenty-two million, eight hundred eighty-five thousand, three hundred twenty-one".