8319889 has 2 divisors, whose sum is σ = 8319890. Its totient is φ = 8319888.

The previous prime is 8319881. The next prime is 8319923. The reversal of 8319889 is 9889138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7935489 + 384400 = 2817^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 8319889 - 2³ = 8319881 is a prime.

It is not a weakly prime, because it can be changed into another prime (8319881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4159944 + 4159945.

It is an arithmetic number, because the mean of its divisors is an integer number (4159945).

Almost surely, 2^8319889 is an apocalyptic number.

It is an amenable number.

8319889 is a deficient number, since it is larger than the sum of its proper divisors (1).

8319889 is an equidigital number, since it uses as much as digits as its factorization.

8319889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 46.

The square root of 8319889 is about 2884.4217791440. The cubic root of 8319889 is about 202.6309796327.

The spelling of 8319889 in words is "eight million, three hundred nineteen thousand, eight hundred eighty-nine".