89678784 has 224 divisors, whose sum is σ = 282204160. Its totient is φ = 24883200.

The previous prime is 89678737. The next prime is 89678807. The reversal of 89678784 is 48787698.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1470114 + ... + 1470174.

It is an arithmetic number, because the mean of its divisors is an integer number (1259840).

Almost surely, 2^89678784 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 89678784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141102080).

89678784 is an abundant number, since it is smaller than the sum of its proper divisors (192525376).

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

89678784 is a wasteful number, since it uses less digits than its factorization.

89678784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 129 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 57.

The square root of 89678784 is about 9469.8882781161. Note that the first 3 decimals coincide. The cubic root of 89678784 is about 447.6066913718.

The spelling of 89678784 in words is "eighty-nine million, six hundred seventy-eight thousand, seven hundred eighty-four".