987899744 has 48 divisors (see below), whose sum is σ = 2097410112. Its totient is φ = 455328768.

The previous prime is 987899743. The next prime is 987899753. The reversal of 987899744 is 447998789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987899743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457772 + ... + 459924.

It is an arithmetic number, because the mean of its divisors is an integer number (43696044).

Almost surely, 2^987899744 is an apocalyptic number.

It is an amenable number.

987899744 is an abundant number, since it is smaller than the sum of its proper divisors (1109510368).

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

987899744 is a wasteful number, since it uses less digits than its factorization.

987899744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3279 (or 3271 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 65.

The square root of 987899744 is about 31430.8724664143. The cubic root of 987899744 is about 995.9502026145.

The spelling of 987899744 in words is "nine hundred eighty-seven million, eight hundred ninety-nine thousand, seven hundred forty-four".