82860851 has 2 divisors, whose sum is σ = 82860852. Its totient is φ = 82860850.

The previous prime is 82860847. The next prime is 82860853. The reversal of 82860851 is 15806828.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82860851 - 2² = 82860847 is a prime.

Together with 82860853, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82860853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41430425 + 41430426.

It is an arithmetic number, because the mean of its divisors is an integer number (41430426).

Almost surely, 2^82860851 is an apocalyptic number.

82860851 is a deficient number, since it is larger than the sum of its proper divisors (1).

82860851 is an equidigital number, since it uses as much as digits as its factorization.

82860851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 82860851 is about 9102.7935821922. The cubic root of 82860851 is about 435.9631646209.

The spelling of 82860851 in words is "eighty-two million, eight hundred sixty thousand, eight hundred fifty-one".