87684044 has 24 divisors (see below), whose sum is σ = 175774368. Its totient is φ = 37491840.

The previous prime is 87684041. The next prime is 87684049. The reversal of 87684044 is 44048678.

It is a junction number, because it is equal to n+sod(n) for n = 87683992 and 87684010.

It is not an unprimeable number, because it can be changed into a prime (87684041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9512 + ... + 16304.

It is an arithmetic number, because the mean of its divisors is an integer number (7323932).

Almost surely, 2^87684044 is an apocalyptic number.

It is an amenable number.

87684044 is an abundant number, since it is smaller than the sum of its proper divisors (88090324).

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

87684044 is a wasteful number, since it uses less digits than its factorization.

87684044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7265 (or 7263 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 87684044 is about 9363.9758649838. The cubic root of 87684044 is about 444.2630465197.

The spelling of 87684044 in words is "eighty-seven million, six hundred eighty-four thousand, forty-four".