887661216 has 72 divisors (see below), whose sum is σ = 2718473940. Its totient is φ = 273125376.

The previous prime is 887661199. The next prime is 887661251. The reversal of 887661216 is 612166788.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 668739600 + 218921616 = 25860^2 + 14796^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114801 + ... + 122288.

Almost surely, 2^887661216 is an apocalyptic number.

It is an amenable number.

887661216 is an abundant number, since it is smaller than the sum of its proper divisors (1830812724).

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

887661216 is a wasteful number, since it uses less digits than its factorization.

887661216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237118 (or 237107 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 887661216 is about 29793.6438859029. The cubic root of 887661216 is about 961.0568569204.

The spelling of 887661216 in words is "eight hundred eighty-seven million, six hundred sixty-one thousand, two hundred sixteen".