86591128 has 16 divisors (see below), whose sum is σ = 174847680. Its totient is φ = 39965088.

The previous prime is 86591119. The next prime is 86591143. The reversal of 86591128 is 82119568.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 416200 + ... + 416407.

It is an arithmetic number, because the mean of its divisors is an integer number (10927980).

Almost surely, 2^86591128 is an apocalyptic number.

It is an amenable number.

86591128 is an abundant number, since it is smaller than the sum of its proper divisors (88256552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86591128 is a wasteful number, since it uses less digits than its factorization.

86591128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832626 (or 832622 counting only the distinct ones).

The product of its digits is 34560, while the sum is 40.

The square root of 86591128 is about 9305.4354008826. The cubic root of 86591128 is about 442.4095219696.

The spelling of 86591128 in words is "eighty-six million, five hundred ninety-one thousand, one hundred twenty-eight".