89047878 has 32 divisors (see below), whose sum is σ = 181512576. Its totient is φ = 29118528.

The previous prime is 89047831. The next prime is 89047879. The reversal of 89047878 is 87874098.

It is a self number, because there is not a number n which added to its sum of digits gives 89047878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89047879) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 80626 + ... + 81722.

It is an arithmetic number, because the mean of its divisors is an integer number (5672268).

Almost surely, 2^89047878 is an apocalyptic number.

89047878 is an abundant number, since it is smaller than the sum of its proper divisors (92464698).

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

89047878 is a wasteful number, since it uses less digits than its factorization.

89047878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348.

The product of its (nonzero) digits is 903168, while the sum is 51.

The square root of 89047878 is about 9436.5183198042. The cubic root of 89047878 is about 446.5545562796.

The spelling of 89047878 in words is "eighty-nine million, forty-seven thousand, eight hundred seventy-eight".