22661827 has 2 divisors, whose sum is σ = 22661828. Its totient is φ = 22661826.

The previous prime is 22661809. The next prime is 22661839. The reversal of 22661827 is 72816622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22661827 - 2¹⁵ = 22629059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22661792 and 22661801.

It is not a weakly prime, because it can be changed into another prime (22661887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11330913 + 11330914.

It is an arithmetic number, because the mean of its divisors is an integer number (11330914).

Almost surely, 2^22661827 is an apocalyptic number.

22661827 is a deficient number, since it is larger than the sum of its proper divisors (1).

22661827 is an equidigital number, since it uses as much as digits as its factorization.

22661827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 34.

The square root of 22661827 is about 4760.4439918982. The cubic root of 22661827 is about 282.9860148666.

The spelling of 22661827 in words is "twenty-two million, six hundred sixty-one thousand, eight hundred twenty-seven".