1728872873 has 24 divisors (see below), whose sum is σ = 2145052800. Its totient is φ = 1364373504.

The previous prime is 1728872867. The next prime is 1728872881. The reversal of 1728872873 is 3782788271.

It is not a de Polignac number, because 1728872873 - 2⁸ = 1728872617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1728872813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 517673 + ... + 521001.

It is an arithmetic number, because the mean of its divisors is an integer number (89377200).

Almost surely, 2^1728872873 is an apocalyptic number.

1728872873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1728872873 is a deficient number, since it is larger than the sum of its proper divisors (416179927).

1728872873 is a wasteful number, since it uses less digits than its factorization.

1728872873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801 (or 3788 counting only the distinct ones).

The product of its digits is 2107392, while the sum is 53.

The square root of 1728872873 is about 41579.7170865796. The cubic root of 1728872873 is about 1200.2020199232.

The spelling of 1728872873 in words is "one billion, seven hundred twenty-eight million, eight hundred seventy-two thousand, eight hundred seventy-three".