82860287 has 2 divisors, whose sum is σ = 82860288. Its totient is φ = 82860286.

The previous prime is 82860257. The next prime is 82860289. The reversal of 82860287 is 78206828.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82860287 - 2⁸ = 82860031 is a prime.

Together with 82860289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82860289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41430143 + 41430144.

It is an arithmetic number, because the mean of its divisors is an integer number (41430144).

Almost surely, 2^82860287 is an apocalyptic number.

82860287 is a deficient number, since it is larger than the sum of its proper divisors (1).

82860287 is an equidigital number, since it uses as much as digits as its factorization.

82860287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 82860287 is about 9102.7626026388. The cubic root of 82860287 is about 435.9621754775.

The spelling of 82860287 in words is "eighty-two million, eight hundred sixty thousand, two hundred eighty-seven".