89881836 has 48 divisors (see below), whose sum is σ = 230926080. Its totient is φ = 26982720.

The previous prime is 89881829. The next prime is 89881859. The reversal of 89881836 is 63818898.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11265 + ... + 17511.

It is an arithmetic number, because the mean of its divisors is an integer number (4810960).

Almost surely, 2^89881836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89881836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115463040).

89881836 is an abundant number, since it is smaller than the sum of its proper divisors (141044244).

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

89881836 is a wasteful number, since it uses less digits than its factorization.

89881836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6374 (or 6372 counting only the distinct ones).

The product of its digits is 663552, while the sum is 51.

The square root of 89881836 is about 9480.6031453700. The cubic root of 89881836 is about 447.9442625705.

The spelling of 89881836 in words is "eighty-nine million, eight hundred eighty-one thousand, eight hundred thirty-six".