86128612 has 24 divisors (see below), whose sum is σ = 153976536. Its totient is φ = 42144768.

The previous prime is 86128589. The next prime is 86128631. The reversal of 86128612 is 21682168.

It can be written as a sum of positive squares in 4 ways, for example, as 3936256 + 82192356 = 1984^2 + 9066^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 38928 + ... + 41080.

It is an arithmetic number, because the mean of its divisors is an integer number (6415689).

Almost surely, 2^86128612 is an apocalyptic number.

It is an amenable number.

86128612 is a deficient number, since it is larger than the sum of its proper divisors (67847924).

86128612 is a wasteful number, since it uses less digits than its factorization.

86128612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367 (or 2365 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 86128612 is about 9280.5501992069. The cubic root of 86128612 is about 441.6204230845.

The spelling of 86128612 in words is "eighty-six million, one hundred twenty-eight thousand, six hundred twelve".