82860647 has 2 divisors, whose sum is σ = 82860648. Its totient is φ = 82860646.

The previous prime is 82860641. The next prime is 82860667. The reversal of 82860647 is 74606828.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82860647 - 2¹⁴ = 82844263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82860641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41430323 + 41430324.

It is an arithmetic number, because the mean of its divisors is an integer number (41430324).

Almost surely, 2^82860647 is an apocalyptic number.

82860647 is a deficient number, since it is larger than the sum of its proper divisors (1).

82860647 is an equidigital number, since it uses as much as digits as its factorization.

82860647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 82860647 is about 9102.7823768340. The cubic root of 82860647 is about 435.9628068461.

The spelling of 82860647 in words is "eighty-two million, eight hundred sixty thousand, six hundred forty-seven".