89965636 has 6 divisors (see below), whose sum is σ = 157439870. Its totient is φ = 44982816.

The previous prime is 89965633. The next prime is 89965643. The reversal of 89965636 is 63656998.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 83174400 + 6791236 = 9120^2 + 2606^2 .

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (89965633) 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 as a sum of consecutive naturals, namely, 11245701 + ... + 11245708.

Almost surely, 2^89965636 is an apocalyptic number.

It is an amenable number.

89965636 is a deficient number, since it is larger than the sum of its proper divisors (67474234).

89965636 is a wasteful number, since it uses less digits than its factorization.

89965636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22491413 (or 22491411 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 52.

The square root of 89965636 is about 9485.0216657633. The cubic root of 89965636 is about 448.0834307309.

It can be divided in two parts, 89965 and 636, that added together give a square (90601 = 301²).

The spelling of 89965636 in words is "eighty-nine million, nine hundred sixty-five thousand, six hundred thirty-six".