87881344 has 32 divisors (see below), whose sum is σ = 182694240. Its totient is φ = 42028800.

The previous prime is 87881317. The next prime is 87881357. The reversal of 87881344 is 44318878.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 87881344.

It is an unprimeable number.

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, 11982 + ... + 17869.

It is an arithmetic number, because the mean of its divisors is an integer number (5709195).

Almost surely, 2^87881344 is an apocalyptic number.

It is an amenable number.

87881344 is an abundant number, since it is smaller than the sum of its proper divisors (94812896).

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

87881344 is a wasteful number, since it uses less digits than its factorization.

87881344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29888 (or 29876 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 87881344 is about 9374.5050002653. The cubic root of 87881344 is about 444.5960126014.

The spelling of 87881344 in words is "eighty-seven million, eight hundred eighty-one thousand, three hundred forty-four".