86216567 has 2 divisors, whose sum is σ = 86216568. Its totient is φ = 86216566.

The previous prime is 86216539. The next prime is 86216569. The reversal of 86216567 is 76561268.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86216567 - 2¹² = 86212471 is a prime.

Together with 86216569, 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 (86216569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43108283 + 43108284.

It is an arithmetic number, because the mean of its divisors is an integer number (43108284).

Almost surely, 2^86216567 is an apocalyptic number.

86216567 is a deficient number, since it is larger than the sum of its proper divisors (1).

86216567 is an equidigital number, since it uses as much as digits as its factorization.

86216567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 86216567 is about 9285.2876638260. The cubic root of 86216567 is about 441.7707003221.

The spelling of 86216567 in words is "eighty-six million, two hundred sixteen thousand, five hundred sixty-seven".