8889971 has 2 divisors, whose sum is σ = 8889972. Its totient is φ = 8889970.

The previous prime is 8889941. The next prime is 8889973. The reversal of 8889971 is 1799888.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8889971 - 2¹⁰ = 8888947 is a prime.

Together with 8889973, 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 (8889973) 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, 4444985 + 4444986.

It is an arithmetic number, because the mean of its divisors is an integer number (4444986).

Almost surely, 2^8889971 is an apocalyptic number.

8889971 is a deficient number, since it is larger than the sum of its proper divisors (1).

8889971 is an equidigital number, since it uses as much as digits as its factorization.

8889971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 50.

The square root of 8889971 is about 2981.6054400272. The cubic root of 8889971 is about 207.1572393162.

The spelling of 8889971 in words is "eight million, eight hundred eighty-nine thousand, nine hundred seventy-one".