887142984 has 128 divisors (see below), whose sum is σ = 2873472000. Its totient is φ = 221647104.

The previous prime is 887142983. The next prime is 887142989. The reversal of 887142984 is 489241788.

It is not an unprimeable number, because it can be changed into a prime (887142983) 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 31 ways as a sum of consecutive naturals, for example, 30807 + ... + 52185.

It is an arithmetic number, because the mean of its divisors is an integer number (22449000).

Almost surely, 2^887142984 is an apocalyptic number.

887142984 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 887142984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1436736000).

887142984 is an abundant number, since it is smaller than the sum of its proper divisors (1986329016).

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

887142984 is a wasteful number, since it uses less digits than its factorization.

887142984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21427 (or 21423 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 51.

The square root of 887142984 is about 29784.9455933698. The cubic root of 887142984 is about 960.8697932963.

The spelling of 887142984 in words is "eight hundred eighty-seven million, one hundred forty-two thousand, nine hundred eighty-four".