89879872 has 28 divisors (see below), whose sum is σ = 182710836. Its totient is φ = 43842560.

The previous prime is 89879869. The next prime is 89879873. The reversal of 89879872 is 27897898.

It can be written as a sum of positive squares in 2 ways, for example, as 9884736 + 79995136 = 3144^2 + 8944^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89879873) 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 3 ways as a sum of consecutive naturals, for example, 14503 + ... + 19750.

It is an arithmetic number, because the mean of its divisors is an integer number (6525387).

Almost surely, 2^89879872 is an apocalyptic number.

89879872 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

89879872 is an abundant number, since it is smaller than the sum of its proper divisors (92830964).

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

89879872 is a wasteful number, since it uses less digits than its factorization.

89879872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34306 (or 34296 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 58.

The square root of 89879872 is about 9480.4995648964. The cubic root of 89879872 is about 447.9409998833.

The spelling of 89879872 in words is "eighty-nine million, eight hundred seventy-nine thousand, eight hundred seventy-two".