89591616 has 112 divisors (see below), whose sum is σ = 265988800. Its totient is φ = 29569536.

The previous prime is 89591599. The next prime is 89591629. The reversal of 89591616 is 61619598.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240006 + ... + 240378.

It is an arithmetic number, because the mean of its divisors is an integer number (2374900).

Almost surely, 2^89591616 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 89591616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132994400).

89591616 is an abundant number, since it is smaller than the sum of its proper divisors (176397184).

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

89591616 is a wasteful number, since it uses less digits than its factorization.

89591616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 517 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 89591616 is about 9465.2847817696. The cubic root of 89591616 is about 447.4616194209.

The spelling of 89591616 in words is "eighty-nine million, five hundred ninety-one thousand, six hundred sixteen".