89989776 has 120 divisors (see below), whose sum is σ = 273911040. Its totient is φ = 27475200.

The previous prime is 89989763. The next prime is 89989799. The reversal of 89989776 is 67798998.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 84286 + ... + 85346.

It is an arithmetic number, because the mean of its divisors is an integer number (2282592).

Almost surely, 2^89989776 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 89989776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136955520).

89989776 is an abundant number, since it is smaller than the sum of its proper divisors (183921264).

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

89989776 is a wasteful number, since it uses less digits than its factorization.

89989776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125 (or 1116 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 63.

The square root of 89989776 is about 9486.2941130876. The cubic root of 89989776 is about 448.1235044271.

The spelling of 89989776 in words is "eighty-nine million, nine hundred eighty-nine thousand, seven hundred seventy-six".