86432278 has 16 divisors (see below), whose sum is σ = 135834624. Its totient is φ = 41195880.

The previous prime is 86432257. The next prime is 86432317. The reversal of 86432278 is 87223468.

It is a self number, because there is not a number n which added to its sum of digits gives 86432278.

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 7 ways as a sum of consecutive naturals, for example, 6250 + ... + 14557.

It is an arithmetic number, because the mean of its divisors is an integer number (8489664).

Almost surely, 2^86432278 is an apocalyptic number.

86432278 is a deficient number, since it is larger than the sum of its proper divisors (49402346).

86432278 is a wasteful number, since it uses less digits than its factorization.

86432278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20907.

The product of its digits is 129024, while the sum is 40.

The square root of 86432278 is about 9296.8961487154. The cubic root of 86432278 is about 442.1388253756.

The spelling of 86432278 in words is "eighty-six million, four hundred thirty-two thousand, two hundred seventy-eight".