86529538 has 16 divisors (see below), whose sum is σ = 134058240. Its totient is φ = 41864416.

The previous prime is 86529523. The next prime is 86529539. The reversal of 86529538 is 83592568.

It is not an unprimeable number, because it can be changed into a prime (86529539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3195 + ... + 13537.

It is an arithmetic number, because the mean of its divisors is an integer number (8378640).

Almost surely, 2^86529538 is an apocalyptic number.

86529538 is a deficient number, since it is larger than the sum of its proper divisors (47528702).

86529538 is a wasteful number, since it uses less digits than its factorization.

86529538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481.

The product of its digits is 518400, while the sum is 46.

The square root of 86529538 is about 9302.1254560450. The cubic root of 86529538 is about 442.3046056581.

It can be divided in two parts, 865 and 29538, that added together give a palindrome (30403).

The spelling of 86529538 in words is "eighty-six million, five hundred twenty-nine thousand, five hundred thirty-eight".