22168705 has 8 divisors (see below), whose sum is σ = 28648872. Its totient is φ = 16370688.

The previous prime is 22168703. The next prime is 22168717. The reversal of 22168705 is 50786122.

It can be written as a sum of positive squares in 4 ways, for example, as 5424241 + 16744464 = 2329^2 + 4092^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22168705 - 2¹ = 22168703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22168703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170464 + ... + 170593.

It is an arithmetic number, because the mean of its divisors is an integer number (3581109).

Almost surely, 2^22168705 is an apocalyptic number.

It is an amenable number.

22168705 is a deficient number, since it is larger than the sum of its proper divisors (6480167).

22168705 is a wasteful number, since it uses less digits than its factorization.

22168705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341075.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 22168705 is about 4708.3654276192. The cubic root of 22168705 is about 280.9183494823.

The spelling of 22168705 in words is "twenty-two million, one hundred sixty-eight thousand, seven hundred five".