89623728 has 120 divisors (see below), whose sum is σ = 274375296. Its totient is φ = 27187200.

The previous prime is 89623693. The next prime is 89623753. The reversal of 89623728 is 82732698.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75298 + ... + 76478.

Almost surely, 2^89623728 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 89623728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137187648).

89623728 is an abundant number, since it is smaller than the sum of its proper divisors (184751568).

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

89623728 is a wasteful number, since it uses less digits than its factorization.

89623728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243 (or 1234 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 89623728 is about 9466.9809337507. The cubic root of 89623728 is about 447.5150737201.

The spelling of 89623728 in words is "eighty-nine million, six hundred twenty-three thousand, seven hundred twenty-eight".