1728874025 has 12 divisors (see below), whose sum is σ = 2201745612. Its totient is φ = 1345717440.

The previous prime is 1728874003. The next prime is 1728874027. The reversal of 1728874025 is 5204788271.

It can be written as a sum of positive squares in 6 ways, for example, as 310249 + 1728563776 = 557^2 + 41576^2 .

It is not a de Polignac number, because 1728874025 - 2¹⁸ = 1728611881 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 (1728874027) 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 11 ways as a sum of consecutive naturals, for example, 933602 + ... + 935451.

It is an arithmetic number, because the mean of its divisors is an integer number (183478801).

Almost surely, 2^1728874025 is an apocalyptic number.

It is an amenable number.

1728874025 is a deficient number, since it is larger than the sum of its proper divisors (472871587).

1728874025 is a wasteful number, since it uses less digits than its factorization.

1728874025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869100 (or 1869095 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 44.

The square root of 1728874025 is about 41579.7309394854. The cubic root of 1728874025 is about 1200.2022865001.

The spelling of 1728874025 in words is "one billion, seven hundred twenty-eight million, eight hundred seventy-four thousand, twenty-five".