889195427 has 2 divisors, whose sum is σ = 889195428. Its totient is φ = 889195426.

The previous prime is 889195403. The next prime is 889195429. The reversal of 889195427 is 724591988.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 889195427 - 2¹⁰ = 889194403 is a prime.

Together with 889195429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (889195429) 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 as a sum of consecutive naturals, namely, 444597713 + 444597714.

It is an arithmetic number, because the mean of its divisors is an integer number (444597714).

Almost surely, 2^889195427 is an apocalyptic number.

889195427 is a deficient number, since it is larger than the sum of its proper divisors (1).

889195427 is an equidigital number, since it uses as much as digits as its factorization.

889195427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 53.

The square root of 889195427 is about 29819.3800572715. The cubic root of 889195427 is about 961.6102269503.

The spelling of 889195427 in words is "eight hundred eighty-nine million, one hundred ninety-five thousand, four hundred twenty-seven".