22985311 has 4 divisors (see below), whose sum is σ = 23006800. Its totient is φ = 22963824.

The previous prime is 22985239. The next prime is 22985323. The reversal of 22985311 is 11358922.

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

It is a cyclic number.

It is not a de Polignac number, because 22985311 - 2²¹ = 20888159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22985341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9051 + ... + 11308.

It is an arithmetic number, because the mean of its divisors is an integer number (5751700).

Almost surely, 2^22985311 is an apocalyptic number.

22985311 is a deficient number, since it is larger than the sum of its proper divisors (21489).

22985311 is a wasteful number, since it uses less digits than its factorization.

22985311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21488.

The product of its digits is 4320, while the sum is 31.

The square root of 22985311 is about 4794.2998446071. The cubic root of 22985311 is about 284.3261436980.

The spelling of 22985311 in words is "twenty-two million, nine hundred eighty-five thousand, three hundred eleven".