86643463 has 2 divisors, whose sum is σ = 86643464. Its totient is φ = 86643462.

The previous prime is 86643457. The next prime is 86643467. The reversal of 86643463 is 36434668.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86643463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86643467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43321731 + 43321732.

It is an arithmetic number, because the mean of its divisors is an integer number (43321732).

Almost surely, 2^86643463 is an apocalyptic number.

86643463 is a deficient number, since it is larger than the sum of its proper divisors (1).

86643463 is an equidigital number, since it uses as much as digits as its factorization.

86643463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 40.

The square root of 86643463 is about 9308.2470422739. The cubic root of 86643463 is about 442.4986336366.

The spelling of 86643463 in words is "eighty-six million, six hundred forty-three thousand, four hundred sixty-three".