987899712 has 28 divisors (see below), whose sum is σ = 2613818496. Its totient is φ = 329299840.

The previous prime is 987899711. The next prime is 987899743. The reversal of 987899712 is 217998789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987899711) 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 3 ways as a sum of consecutive naturals, for example, 2572464 + ... + 2572847.

Almost surely, 2^987899712 is an apocalyptic number.

It is an amenable number.

987899712 is an abundant number, since it is smaller than the sum of its proper divisors (1625918784).

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

987899712 is a wasteful number, since it uses less digits than its factorization.

987899712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145326 (or 5145316 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 60.

The square root of 987899712 is about 31430.8719573606. The cubic root of 987899712 is about 995.9501918609.

The spelling of 987899712 in words is "nine hundred eighty-seven million, eight hundred ninety-nine thousand, seven hundred twelve".