87543044 has 12 divisors (see below), whose sum is σ = 153291600. Its totient is φ = 43745448.

The previous prime is 87543041. The next prime is 87543061. The reversal of 87543044 is 44034578.

It is a junction number, because it is equal to n+sod(n) for n = 87542995 and 87543013.

It is not an unprimeable number, because it can be changed into a prime (87543041) 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, 2387 + ... + 13445.

It is an arithmetic number, because the mean of its divisors is an integer number (12774300).

Almost surely, 2^87543044 is an apocalyptic number.

It is an amenable number.

87543044 is a deficient number, since it is larger than the sum of its proper divisors (65748556).

87543044 is a wasteful number, since it uses less digits than its factorization.

87543044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13042 (or 13040 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 87543044 is about 9356.4439826250. The cubic root of 87543044 is about 444.0247869180.

The spelling of 87543044 in words is "eighty-seven million, five hundred forty-three thousand, forty-four".