86443911 has 12 divisors (see below), whose sum is σ = 125026200. Its totient is φ = 57554160.

The previous prime is 86443891. The next prime is 86443921. The reversal of 86443911 is 11934468.

86443911 is a `hidden beast` number, since 8 + 644 + 3 + 9 + 1 + 1 = 666.

It is not a de Polignac number, because 86443911 - 2⁷ = 86443783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86443921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1540 + ... + 13238.

It is an arithmetic number, because the mean of its divisors is an integer number (10418850).

Almost surely, 2^86443911 is an apocalyptic number.

86443911 is a deficient number, since it is larger than the sum of its proper divisors (38582289).

86443911 is a wasteful number, since it uses less digits than its factorization.

86443911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12526 (or 12523 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 86443911 is about 9297.5217665784. The cubic root of 86443911 is about 442.1586604431.

The spelling of 86443911 in words is "eighty-six million, four hundred forty-three thousand, nine hundred eleven".