86573871 has 12 divisors (see below), whose sum is σ = 125776248. Its totient is φ = 57381264.

The previous prime is 86573819. The next prime is 86573891. The reversal of 86573871 is 17837568.

86573871 is a `hidden beast` number, since 8 + 6 + 573 + 8 + 71 = 666.

It is not a de Polignac number, because 86573871 - 2¹³ = 86565679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86573801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26245 + ... + 29358.

It is an arithmetic number, because the mean of its divisors is an integer number (10481354).

Almost surely, 2^86573871 is an apocalyptic number.

86573871 is a deficient number, since it is larger than the sum of its proper divisors (39202377).

86573871 is a wasteful number, since it uses less digits than its factorization.

86573871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55782 (or 55779 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 86573871 is about 9304.5081009154. The cubic root of 86573871 is about 442.3801303197.

The spelling of 86573871 in words is "eighty-six million, five hundred seventy-three thousand, eight hundred seventy-one".