83386889 has 2 divisors, whose sum is σ = 83386890. Its totient is φ = 83386888.

The previous prime is 83386879. The next prime is 83386903. The reversal of 83386889 is 98868338.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78943225 + 4443664 = 8885^2 + 2108^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83386889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83386889.

It is not a weakly prime, because it can be changed into another prime (83386879) 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, 41693444 + 41693445.

It is an arithmetic number, because the mean of its divisors is an integer number (41693445).

Almost surely, 2^83386889 is an apocalyptic number.

It is an amenable number.

83386889 is a deficient number, since it is larger than the sum of its proper divisors (1).

83386889 is an equidigital number, since it uses as much as digits as its factorization.

83386889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 53.

The square root of 83386889 is about 9131.6421852808. The cubic root of 83386889 is about 436.8837826988.

The spelling of 83386889 in words is "eighty-three million, three hundred eighty-six thousand, eight hundred eighty-nine".