987616854 has 96 divisors (see below), whose sum is σ = 2588502240. Its totient is φ = 278256384.

The previous prime is 987616843. The next prime is 987616873. The reversal of 987616854 is 458616789.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 987616854.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190602 + ... + 195714.

It is an arithmetic number, because the mean of its divisors is an integer number (26963565).

Almost surely, 2^987616854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 987616854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1294251120).

987616854 is an abundant number, since it is smaller than the sum of its proper divisors (1600885386).

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

987616854 is a wasteful number, since it uses less digits than its factorization.

987616854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211 (or 5198 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 987616854 is about 31426.3719509586. The cubic root of 987616854 is about 995.8551284427.

The spelling of 987616854 in words is "nine hundred eighty-seven million, six hundred sixteen thousand, eight hundred fifty-four".