8987117952 has 64 divisors (see below), whose sum is σ = 25128475200. Its totient is φ = 2838034944.

The previous prime is 8987117941. The next prime is 8987117989. The reversal of 8987117952 is 2597117898.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 8987117892 and 8987117901.

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 7 ways as a sum of consecutive naturals, for example, 608598 + ... + 623189.

It is an arithmetic number, because the mean of its divisors is an integer number (392632425).

Almost surely, 2^8987117952 is an apocalyptic number.

It is an amenable number.

8987117952 is an abundant number, since it is smaller than the sum of its proper divisors (16141357248).

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

8987117952 is a wasteful number, since it uses less digits than its factorization.

8987117952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231823 (or 1231811 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 57.

The square root of 8987117952 is about 94800.4111383490. The cubic root of 8987117952 is about 2079.0909143696.

The spelling of 8987117952 in words is "eight billion, nine hundred eighty-seven million, one hundred seventeen thousand, nine hundred fifty-two".