987284885 has 8 divisors (see below), whose sum is σ = 1185024600. Its totient is φ = 789639424.

The previous prime is 987284863. The next prime is 987284929. The reversal of 987284885 is 588482789.

It can be written as a sum of positive squares in 4 ways, for example, as 193961329 + 793323556 = 13927^2 + 28166^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 987284885 - 2⁸ = 987284629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2009 + ... + 44481.

It is an arithmetic number, because the mean of its divisors is an integer number (148128075).

Almost surely, 2^987284885 is an apocalyptic number.

It is an amenable number.

987284885 is a deficient number, since it is larger than the sum of its proper divisors (197739715).

987284885 is a wasteful number, since it uses less digits than its factorization.

987284885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47127.

The product of its digits is 10321920, while the sum is 59.

The square root of 987284885 is about 31421.0898124174. The cubic root of 987284885 is about 995.7435365578.

The spelling of 987284885 in words is "nine hundred eighty-seven million, two hundred eighty-four thousand, eight hundred eighty-five".