86911055 has 64 divisors (see below), whose sum is σ = 141004800. Its totient is φ = 50803200.

The previous prime is 86911049. The next prime is 86911079. The reversal of 86911055 is 55011968.

It is not a de Polignac number, because 86911055 - 2⁶ = 86910991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 320570 + ... + 320840.

It is an arithmetic number, because the mean of its divisors is an integer number (2203200).

Almost surely, 2^86911055 is an apocalyptic number.

86911055 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

86911055 is a deficient number, since it is larger than the sum of its proper divisors (54093745).

86911055 is a wasteful number, since it uses less digits than its factorization.

86911055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 86911055 is about 9322.6098813583. The cubic root of 86911055 is about 442.9537070287.

The spelling of 86911055 in words is "eighty-six million, nine hundred eleven thousand, fifty-five".