987898728 has 32 divisors (see below), whose sum is σ = 2475178560. Its totient is φ = 328575360.

The previous prime is 987898663. The next prime is 987898729. The reversal of 987898728 is 827898789.

It is not an unprimeable number, because it can be changed into a prime (987898729) 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, 34068 + ... + 56003.

It is an arithmetic number, because the mean of its divisors is an integer number (77349330).

Almost surely, 2^987898728 is an apocalyptic number.

It is an amenable number.

987898728 is an abundant number, since it is smaller than the sum of its proper divisors (1487279832).

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

987898728 is a wasteful number, since it uses less digits than its factorization.

987898728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90537 (or 90533 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 66.

The square root of 987898728 is about 31430.8563039571. The cubic root of 987898728 is about 995.9498611879.

The spelling of 987898728 in words is "nine hundred eighty-seven million, eight hundred ninety-eight thousand, seven hundred twenty-eight".