86971527 has 6 divisors (see below), whose sum is σ = 125625552. Its totient is φ = 57981012.

The previous prime is 86971519. The next prime is 86971529. The reversal of 86971527 is 72517968.

It is not a de Polignac number, because 86971527 - 2³ = 86971519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86971529) 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 5 ways as a sum of consecutive naturals, for example, 4831743 + ... + 4831760.

It is an arithmetic number, because the mean of its divisors is an integer number (20937592).

Almost surely, 2^86971527 is an apocalyptic number.

86971527 is a deficient number, since it is larger than the sum of its proper divisors (38654025).

86971527 is a wasteful number, since it uses less digits than its factorization.

86971527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9663509 (or 9663506 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 86971527 is about 9325.8526151768. The cubic root of 86971527 is about 443.0564177306.

The spelling of 86971527 in words is "eighty-six million, nine hundred seventy-one thousand, five hundred twenty-seven".