89889612 has 48 divisors (see below), whose sum is σ = 222173952. Its totient is φ = 28226880.

The previous prime is 89889607. The next prime is 89889617. The reversal of 89889612 is 21698898.

It is an interprime number because it is at equal distance from previous prime (89889607) and next prime (89889617).

It is not an unprimeable number, because it can be changed into a prime (89889617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16062 + ... + 20922.

It is an arithmetic number, because the mean of its divisors is an integer number (4628624).

Almost surely, 2^89889612 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 89889612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111086976).

89889612 is an abundant number, since it is smaller than the sum of its proper divisors (132284340).

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

89889612 is a wasteful number, since it uses less digits than its factorization.

89889612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4958 (or 4956 counting only the distinct ones).

The product of its digits is 497664, while the sum is 51.

The square root of 89889612 is about 9481.0132369911. The cubic root of 89889612 is about 447.9571799529.

The spelling of 89889612 in words is "eighty-nine million, eight hundred eighty-nine thousand, six hundred twelve".