89616728 has 16 divisors (see below), whose sum is σ = 173826000. Its totient is φ = 43263136.

The previous prime is 89616727. The next prime is 89616767. The reversal of 89616728 is 82761698.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89616727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192908 + ... + 193371.

It is an arithmetic number, because the mean of its divisors is an integer number (10864125).

Almost surely, 2^89616728 is an apocalyptic number.

It is an amenable number.

89616728 is a deficient number, since it is larger than the sum of its proper divisors (84209272).

89616728 is a wasteful number, since it uses less digits than its factorization.

89616728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386314 (or 386310 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 89616728 is about 9466.6112204949. The cubic root of 89616728 is about 447.5034224638.

The spelling of 89616728 in words is "eighty-nine million, six hundred sixteen thousand, seven hundred twenty-eight".