86689636 has 12 divisors (see below), whose sum is σ = 165498480. Its totient is φ = 39404360.

The previous prime is 86689597. The next prime is 86689639. The reversal of 86689636 is 63698668.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (86689639) 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 3 ways as a sum of consecutive naturals, for example, 985066 + ... + 985153.

It is an arithmetic number, because the mean of its divisors is an integer number (13791540).

Almost surely, 2^86689636 is an apocalyptic number.

It is an amenable number.

86689636 is a deficient number, since it is larger than the sum of its proper divisors (78808844).

86689636 is a wasteful number, since it uses less digits than its factorization.

86689636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970234 (or 1970232 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 52.

The square root of 86689636 is about 9310.7269318781. The cubic root of 86689636 is about 442.5772233744.

The spelling of 86689636 in words is "eighty-six million, six hundred eighty-nine thousand, six hundred thirty-six".