87841944 has 24 divisors (see below), whose sum is σ = 237905460. Its totient is φ = 29280624.

The previous prime is 87841937. The next prime is 87841969. The reversal of 87841944 is 44914878.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 87841944.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 609942 + ... + 610085.

Almost surely, 2^87841944 is an apocalyptic number.

It is an amenable number.

87841944 is an abundant number, since it is smaller than the sum of its proper divisors (150063516).

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

87841944 is a wasteful number, since it uses less digits than its factorization.

87841944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220039 (or 1220032 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 87841944 is about 9372.4033203869. The cubic root of 87841944 is about 444.5295604946.

The spelling of 87841944 in words is "eighty-seven million, eight hundred forty-one thousand, nine hundred forty-four".