22085871 has 4 divisors (see below), whose sum is σ = 29447832. Its totient is φ = 14723912.

The previous prime is 22085863. The next prime is 22085879. The reversal of 22085871 is 17858022.

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

It is an interprime number because it is at equal distance from previous prime (22085863) and next prime (22085879).

It is a cyclic number.

It is not a de Polignac number, because 22085871 - 2³ = 22085863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22085879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3680976 + ... + 3680981.

It is an arithmetic number, because the mean of its divisors is an integer number (7361958).

Almost surely, 2^22085871 is an apocalyptic number.

22085871 is a deficient number, since it is larger than the sum of its proper divisors (7361961).

22085871 is an equidigital number, since it uses as much as digits as its factorization.

22085871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7361960.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 22085871 is about 4699.5607241528. The cubic root of 22085871 is about 280.5680263072.

The spelling of 22085871 in words is "twenty-two million, eighty-five thousand, eight hundred seventy-one".