87647044 has 27 divisors (see below), whose sum is σ = 159546303. Its totient is φ = 42129000.

The previous prime is 87647041. The next prime is 87647051. The reversal of 87647044 is 44074678.

The square root of 87647044 is 9362.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87646988 and 87647006.

It is not an unprimeable number, because it can be changed into a prime (87647041) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 580369 + ... + 580519.

Almost surely, 2^87647044 is an apocalyptic number.

87647044 is the 9362-nd square number.

It is an amenable number.

87647044 is a deficient number, since it is larger than the sum of its proper divisors (71899259).

87647044 is a wasteful number, since it uses less digits than its factorization.

87647044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The cubic root of 87647044 is about 444.2005492298.

The spelling of 87647044 in words is "eighty-seven million, six hundred forty-seven thousand, forty-four".