22164017 has 4 divisors (see below), whose sum is σ = 22582260. Its totient is φ = 21745776.

The previous prime is 22164011. The next prime is 22164029. The reversal of 22164017 is 71046122.

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 6355441 + 15808576 = 2521^2 + 3976^2 .

It is a cyclic number.

It is not a de Polignac number, because 22164017 - 2⁴ = 22164001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22163983 and 22164001.

It is not an unprimeable number, because it can be changed into a prime (22164011) 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, 209042 + ... + 209147.

It is an arithmetic number, because the mean of its divisors is an integer number (5645565).

Almost surely, 2^22164017 is an apocalyptic number.

It is an amenable number.

22164017 is a deficient number, since it is larger than the sum of its proper divisors (418243).

22164017 is an equidigital number, since it uses as much as digits as its factorization.

22164017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418242.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 22164017 is about 4707.8675639827. The cubic root of 22164017 is about 280.8985462197.

The spelling of 22164017 in words is "twenty-two million, one hundred sixty-four thousand, seventeen".