1728974973 has 16 divisors (see below), whose sum is σ = 2526160896. Its totient is φ = 1043160240.

The previous prime is 1728974971. The next prime is 1728974981. The reversal of 1728974973 is 3794798271.

It is not a de Polignac number, because 1728974973 - 2¹ = 1728974971 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1728974971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110115 + ... + 124832.

It is an arithmetic number, because the mean of its divisors is an integer number (157885056).

Almost surely, 2^1728974973 is an apocalyptic number.

It is an amenable number.

1728974973 is a deficient number, since it is larger than the sum of its proper divisors (797185923).

1728974973 is a wasteful number, since it uses less digits than its factorization.

1728974973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235184.

The product of its digits is 5334336, while the sum is 57.

The square root of 1728974973 is about 41580.9448305351. The cubic root of 1728974973 is about 1200.2256457618.

The spelling of 1728974973 in words is "one billion, seven hundred twenty-eight million, nine hundred seventy-four thousand, nine hundred seventy-three".