988730728 has 24 divisors (see below), whose sum is σ = 1894187250. Its totient is φ = 483838304.

The previous prime is 988730711. The next prime is 988730749. The reversal of 988730728 is 827037889.

It can be written as a sum of positive squares in only one way, i.e., 921851044 + 66879684 = 30362^2 + 8178^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10303 + ... + 45646.

Almost surely, 2^988730728 is an apocalyptic number.

It is an amenable number.

988730728 is a deficient number, since it is larger than the sum of its proper divisors (905456522).

988730728 is a wasteful number, since it uses less digits than its factorization.

988730728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56049 (or 55998 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 52.

The square root of 988730728 is about 31444.0889198590. The cubic root of 988730728 is about 996.2293762664.

The spelling of 988730728 in words is "nine hundred eighty-eight million, seven hundred thirty thousand, seven hundred twenty-eight".