89881129 has 6 divisors (see below), whose sum is σ = 97327086. Its totient is φ = 82967040.

The previous prime is 89881109. The next prime is 89881133. The reversal of 89881129 is 92118898.

It can be written as a sum of positive squares in 3 ways, for example, as 11594025 + 78287104 = 3405^2 + 8848^2 .

It is not a de Polignac number, because 89881129 - 2⁵ = 89881097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89881109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 265752 + ... + 266089.

It is an arithmetic number, because the mean of its divisors is an integer number (16221181).

Almost surely, 2^89881129 is an apocalyptic number.

It is an amenable number.

89881129 is a deficient number, since it is larger than the sum of its proper divisors (7445957).

89881129 is a wasteful number, since it uses less digits than its factorization.

89881129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531867 (or 531854 counting only the distinct ones).

The product of its digits is 82944, while the sum is 46.

The square root of 89881129 is about 9480.5658586395. The cubic root of 89881129 is about 447.9430880750.

The spelling of 89881129 in words is "eighty-nine million, eight hundred eighty-one thousand, one hundred twenty-nine".