89439228 has 30 divisors (see below), whose sum is σ = 233812656. Its totient is φ = 29812968.

The previous prime is 89439211. The next prime is 89439239. The reversal of 89439228 is 82293498.

It is a congruent 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 9 ways as a sum of consecutive naturals, for example, 137700 + ... + 138347.

Almost surely, 2^89439228 is an apocalyptic number.

It is an amenable number.

89439228 is an abundant number, since it is smaller than the sum of its proper divisors (144373428).

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

89439228 is a wasteful number, since it uses less digits than its factorization.

89439228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276063 (or 276052 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 89439228 is about 9457.2315187903. The cubic root of 89439228 is about 447.2077769243.

The spelling of 89439228 in words is "eighty-nine million, four hundred thirty-nine thousand, two hundred twenty-eight".