83886889 has 2 divisors, whose sum is σ = 83886890. Its totient is φ = 83886888.

The previous prime is 83886883. The next prime is 83886941. The reversal of 83886889 is 98868838.

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., 82955664 + 931225 = 9108^2 + 965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83886889 is a prime.

It is not a weakly prime, because it can be changed into another prime (83886883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41943444 + 41943445.

It is an arithmetic number, because the mean of its divisors is an integer number (41943445).

Almost surely, 2^83886889 is an apocalyptic number.

It is an amenable number.

83886889 is a deficient number, since it is larger than the sum of its proper divisors (1).

83886889 is an equidigital number, since it uses as much as digits as its factorization.

83886889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5308416, while the sum is 58.

The square root of 83886889 is about 9158.9786002589. The cubic root of 83886889 is about 437.7552495820.

The spelling of 83886889 in words is "eighty-three million, eight hundred eighty-six thousand, eight hundred eighty-nine".