86819271 has 16 divisors (see below), whose sum is σ = 144323328. Its totient is φ = 45100800.

The previous prime is 86819231. The next prime is 86819281. The reversal of 86819271 is 17291868.

It is not a de Polignac number, because 86819271 - 2⁶ = 86819207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86819231) 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 15 ways as a sum of consecutive naturals, for example, 187690 + ... + 188151.

It is an arithmetic number, because the mean of its divisors is an integer number (9020208).

Almost surely, 2^86819271 is an apocalyptic number.

86819271 is a deficient number, since it is larger than the sum of its proper divisors (57504057).

86819271 is a wasteful number, since it uses less digits than its factorization.

86819271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375862.

The product of its digits is 48384, while the sum is 42.

The square root of 86819271 is about 9317.6859251640. The cubic root of 86819271 is about 442.7977223333.

The spelling of 86819271 in words is "eighty-six million, eight hundred nineteen thousand, two hundred seventy-one".