82486889 has 2 divisors, whose sum is σ = 82486890. Its totient is φ = 82486888.

The previous prime is 82486867. The next prime is 82486931. The reversal of 82486889 is 98868428.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47499664 + 34987225 = 6892^2 + 5915^2 .

It is a cyclic number.

It is not a de Polignac number, because 82486889 - 2⁸ = 82486633 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82486889.

It is not a weakly prime, because it can be changed into another prime (82482889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41243444 + 41243445.

It is an arithmetic number, because the mean of its divisors is an integer number (41243445).

Almost surely, 2^82486889 is an apocalyptic number.

It is an amenable number.

82486889 is a deficient number, since it is larger than the sum of its proper divisors (1).

82486889 is an equidigital number, since it uses as much as digits as its factorization.

82486889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1769472, while the sum is 53.

The square root of 82486889 is about 9082.2292968191. The cubic root of 82486889 is about 435.3063223125.

The spelling of 82486889 in words is "eighty-two million, four hundred eighty-six thousand, eight hundred eighty-nine".