22157827 has 6 divisors (see below), whose sum is σ = 22949108. Its totient is φ = 21392952.

The previous prime is 22157797. The next prime is 22157867. The reversal of 22157827 is 72875122.

It is not a de Polignac number, because 22157827 - 2¹¹ = 22155779 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22157792 and 22157801.

It is not an unprimeable number, because it can be changed into a prime (22157867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12333 + ... + 14014.

Almost surely, 2^22157827 is an apocalyptic number.

22157827 is a deficient number, since it is larger than the sum of its proper divisors (791281).

22157827 is an equidigital number, since it uses as much as digits as its factorization.

22157827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26405 (or 26376 counting only the distinct ones).

The product of its digits is 15680, while the sum is 34.

The square root of 22157827 is about 4707.2101079089. The cubic root of 22157827 is about 280.8723938621.

The spelling of 22157827 in words is "twenty-two million, one hundred fifty-seven thousand, eight hundred twenty-seven".