987280916 has 48 divisors (see below), whose sum is σ = 1900357200. Its totient is φ = 446865408.

The previous prime is 987280909. The next prime is 987280927. The reversal of 987280916 is 619082789.

987280916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1948816 + 985332100 = 1396^2 + 31390^2 .

It is a super-4 number, since 4×987280916⁴ (a number of 37 digits) contains 4444 as substring.

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, 221720 + ... + 226128.

It is an arithmetic number, because the mean of its divisors is an integer number (39590775).

Almost surely, 2^987280916 is an apocalyptic number.

It is an amenable number.

987280916 is a deficient number, since it is larger than the sum of its proper divisors (913076284).

987280916 is a wasteful number, since it uses less digits than its factorization.

987280916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4556 (or 4554 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 987280916 is about 31421.0266541372. The cubic root of 987280916 is about 995.7422022211.

The spelling of 987280916 in words is "nine hundred eighty-seven million, two hundred eighty thousand, nine hundred sixteen".