89989444 has 12 divisors (see below), whose sum is σ = 158539500. Its totient is φ = 44692448.

The previous prime is 89989441. The next prime is 89989463. The reversal of 89989444 is 44498998.

It can be written as a sum of positive squares in 2 ways, for example, as 23892544 + 66096900 = 4888^2 + 8130^2 .

It is not an unprimeable number, because it can be changed into a prime (89989441) 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 in 3 ways as a sum of consecutive naturals, for example, 74899 + ... + 76090.

It is an arithmetic number, because the mean of its divisors is an integer number (13211625).

Almost surely, 2^89989444 is an apocalyptic number.

It is an amenable number.

89989444 is a deficient number, since it is larger than the sum of its proper divisors (68550056).

89989444 is a wasteful number, since it uses less digits than its factorization.

89989444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151142 (or 151140 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 55.

The square root of 89989444 is about 9486.2766141411. The cubic root of 89989444 is about 448.1229533379.

The spelling of 89989444 in words is "eighty-nine million, nine hundred eighty-nine thousand, four hundred forty-four".