86422559 has 2 divisors, whose sum is σ = 86422560. Its totient is φ = 86422558.

The previous prime is 86422541. The next prime is 86422597. The reversal of 86422559 is 95522468.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86422559 - 2²⁴ = 69645343 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86422529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43211279 + 43211280.

It is an arithmetic number, because the mean of its divisors is an integer number (43211280).

Almost surely, 2^86422559 is an apocalyptic number.

86422559 is a deficient number, since it is larger than the sum of its proper divisors (1).

86422559 is an equidigital number, since it uses as much as digits as its factorization.

86422559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 41.

The square root of 86422559 is about 9296.3734326887. The cubic root of 86422559 is about 442.1222524454.

Subtracting 86422559 from its reverse (95522468), we obtain a palindrome (9099909).

The spelling of 86422559 in words is "eighty-six million, four hundred twenty-two thousand, five hundred fifty-nine".