9987276 has 48 divisors (see below), whose sum is σ = 25469024. Its totient is φ = 3027456.

The previous prime is 9987253. The next prime is 9987283. The reversal of 9987276 is 6727899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10950 + ... + 11826.

Almost surely, 2^9987276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9987276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12734512).

9987276 is an abundant number, since it is smaller than the sum of its proper divisors (15481748).

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

9987276 is a wasteful number, since it uses less digits than its factorization.

9987276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 968 counting only the distinct ones).

The product of its digits is 381024, while the sum is 48.

The square root of 9987276 is about 3160.2651787469. The cubic root of 9987276 is about 215.3520534632.

The spelling of 9987276 in words is "nine million, nine hundred eighty-seven thousand, two hundred seventy-six".