987880804 has 12 divisors (see below), whose sum is σ = 1744091244. Its totient is φ = 489569024.

The previous prime is 987880801. The next prime is 987880847. The reversal of 987880804 is 408088789.

It can be written as a sum of positive squares in 2 ways, for example, as 48580900 + 939299904 = 6970^2 + 30648^2 .

It is not an unprimeable number, because it can be changed into a prime (987880801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1092337 + ... + 1093240.

It is an arithmetic number, because the mean of its divisors is an integer number (145340937).

Almost surely, 2^987880804 is an apocalyptic number.

It is an amenable number.

987880804 is a deficient number, since it is larger than the sum of its proper divisors (756210440).

987880804 is a wasteful number, since it uses less digits than its factorization.

987880804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185694 (or 2185692 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 52.

The square root of 987880804 is about 31430.5711688477. The cubic root of 987880804 is about 995.9438377928.

The spelling of 987880804 in words is "nine hundred eighty-seven million, eight hundred eighty thousand, eight hundred four".