86138788 has 12 divisors (see below), whose sum is σ = 151894512. Its totient is φ = 42740360.

The previous prime is 86138783. The next prime is 86138791. The reversal of 86138788 is 88783168.

It is not an unprimeable number, because it can be changed into a prime (86138783) 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 3 ways as a sum of consecutive naturals, for example, 81670 + ... + 82717.

It is an arithmetic number, because the mean of its divisors is an integer number (12657876).

Almost surely, 2^86138788 is an apocalyptic number.

It is an amenable number.

86138788 is a deficient number, since it is larger than the sum of its proper divisors (65755724).

86138788 is a wasteful number, since it uses less digits than its factorization.

86138788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164522 (or 164520 counting only the distinct ones).

The product of its digits is 516096, while the sum is 49.

The square root of 86138788 is about 9281.0984263717. The cubic root of 86138788 is about 441.6378147206.

The spelling of 86138788 in words is "eighty-six million, one hundred thirty-eight thousand, seven hundred eighty-eight".