987504804 has 192 divisors, whose sum is σ = 3079802880. Its totient is φ = 269619840.

The previous prime is 987504797. The next prime is 987504809. The reversal of 987504804 is 408405789.

It is a self number, because there is not a number n which added to its sum of digits gives 987504804.

It is not an unprimeable number, because it can be changed into a prime (987504809) 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 63 ways as a sum of consecutive naturals, for example, 663349 + ... + 664835.

It is an arithmetic number, because the mean of its divisors is an integer number (16040640).

Almost surely, 2^987504804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 987504804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1539901440).

987504804 is an abundant number, since it is smaller than the sum of its proper divisors (2092298076).

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

987504804 is a wasteful number, since it uses less digits than its factorization.

987504804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567 (or 1559 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 987504804 is about 31424.5891619922. The cubic root of 987504804 is about 995.8174654607.

The spelling of 987504804 in words is "nine hundred eighty-seven million, five hundred four thousand, eight hundred four".