1728969976 has 32 divisors (see below), whose sum is σ = 3270196800. Its totient is φ = 856952320.

The previous prime is 1728969971. The next prime is 1728969997. The reversal of 1728969976 is 6799698271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1728969971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443556 + ... + 447436.

It is an arithmetic number, because the mean of its divisors is an integer number (102193650).

Almost surely, 2^1728969976 is an apocalyptic number.

It is an amenable number.

1728969976 is a deficient number, since it is larger than the sum of its proper divisors (1541226824).

1728969976 is a wasteful number, since it uses less digits than its factorization.

1728969976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359 (or 4355 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 64.

The square root of 1728969976 is about 41580.8847428719. The cubic root of 1728969976 is about 1200.2244894826.

The spelling of 1728969976 in words is "one billion, seven hundred twenty-eight million, nine hundred sixty-nine thousand, nine hundred seventy-six".