22071859 has 4 divisors (see below), whose sum is σ = 22199616. Its totient is φ = 21944104.

The previous prime is 22071851. The next prime is 22071883. The reversal of 22071859 is 95817022.

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 22071859 - 2³ = 22071851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22071851) 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, 63619 + ... + 63964.

It is an arithmetic number, because the mean of its divisors is an integer number (5549904).

Almost surely, 2^22071859 is an apocalyptic number.

22071859 is a deficient number, since it is larger than the sum of its proper divisors (127757).

22071859 is a wasteful number, since it uses less digits than its factorization.

22071859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127756.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 22071859 is about 4698.0697099979. The cubic root of 22071859 is about 280.5086799063.

The spelling of 22071859 in words is "twenty-two million, seventy-one thousand, eight hundred fifty-nine".