973680728 has 8 divisors (see below), whose sum is σ = 1825651380. Its totient is φ = 486840360.

The previous prime is 973680709. The next prime is 973680769. The reversal of 973680728 is 827086379.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60855038 + ... + 60855053.

Almost surely, 2^973680728 is an apocalyptic number.

It is an amenable number.

973680728 is a deficient number, since it is larger than the sum of its proper divisors (851970652).

973680728 is a wasteful number, since it uses less digits than its factorization.

973680728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121710097 (or 121710093 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 973680728 is about 31203.8575820362. The cubic root of 973680728 is about 991.1487966787.

The spelling of 973680728 in words is "nine hundred seventy-three million, six hundred eighty thousand, seven hundred twenty-eight".