86513571 has 12 divisors (see below), whose sum is σ = 126725040. Its totient is φ = 56862960.

The previous prime is 86513569. The next prime is 86513573. The reversal of 86513571 is 17531568.

86513571 is a `hidden beast` number, since 86 + 5 + 1 + 3 + 571 = 666.

It is an interprime number because it is at equal distance from previous prime (86513569) and next prime (86513573).

It is not a de Polignac number, because 86513571 - 2¹ = 86513569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86513573) 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, 67056 + ... + 68333.

It is an arithmetic number, because the mean of its divisors is an integer number (10560420).

Almost surely, 2^86513571 is an apocalyptic number.

86513571 is a deficient number, since it is larger than the sum of its proper divisors (40211469).

86513571 is a wasteful number, since it uses less digits than its factorization.

86513571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135466 (or 135463 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 86513571 is about 9301.2671717353. The cubic root of 86513571 is about 442.2773983320.

The spelling of 86513571 in words is "eighty-six million, five hundred thirteen thousand, five hundred seventy-one".