86643532 has 24 divisors (see below), whose sum is σ = 157222800. Its totient is φ = 41729856.

The previous prime is 86643527. The next prime is 86643539. The reversal of 86643532 is 23534668.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 86643491 and 86643500.

It is not an unprimeable number, because it can be changed into a prime (86643539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84519 + ... + 85537.

It is an arithmetic number, because the mean of its divisors is an integer number (6550950).

Almost surely, 2^86643532 is an apocalyptic number.

It is an amenable number.

86643532 is a deficient number, since it is larger than the sum of its proper divisors (70579268).

86643532 is a wasteful number, since it uses less digits than its factorization.

86643532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785 (or 1783 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 86643532 is about 9308.2507486638. The cubic root of 86643532 is about 442.4987511004.

The spelling of 86643532 in words is "eighty-six million, six hundred forty-three thousand, five hundred thirty-two".