85965636 has 12 divisors (see below), whose sum is σ = 200586512. Its totient is φ = 28655208.

The previous prime is 85965613. The next prime is 85965637. The reversal of 85965636 is 63656958.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (85965637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3581890 + ... + 3581913.

Almost surely, 2^85965636 is an apocalyptic number.

It is an amenable number.

85965636 is an abundant number, since it is smaller than the sum of its proper divisors (114620876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85965636 is a wasteful number, since it uses less digits than its factorization.

85965636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7163810 (or 7163808 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 48.

The square root of 85965636 is about 9271.7655276652. The cubic root of 85965636 is about 441.3416966030.

The spelling of 85965636 in words is "eighty-five million, nine hundred sixty-five thousand, six hundred thirty-six".