987020728 has 32 divisors (see below), whose sum is σ = 1876366800. Its totient is φ = 486678528.

The previous prime is 987020719. The next prime is 987020729. The reversal of 987020728 is 827020789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987020729) 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, 509650 + ... + 511582.

Almost surely, 2^987020728 is an apocalyptic number.

It is an amenable number.

987020728 is a deficient number, since it is larger than the sum of its proper divisors (889346072).

987020728 is a wasteful number, since it uses less digits than its factorization.

987020728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791 (or 2787 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 987020728 is about 31416.8860328327. The cubic root of 987020728 is about 995.6547219067.

The spelling of 987020728 in words is "nine hundred eighty-seven million, twenty thousand, seven hundred twenty-eight".