1730728735 has 8 divisors (see below), whose sum is σ = 2077115040. Its totient is φ = 1384422624.

The previous prime is 1730728733. The next prime is 1730728739. The reversal of 1730728735 is 5378270371.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1730728735 - 2¹ = 1730728733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1730728691 and 1730728700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1730728733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49161 + ... + 76669.

It is an arithmetic number, because the mean of its divisors is an integer number (259639380).

Almost surely, 2^1730728735 is an apocalyptic number.

1730728735 is a deficient number, since it is larger than the sum of its proper divisors (346386305).

1730728735 is a wasteful number, since it uses less digits than its factorization.

1730728735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40097.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 1730728735 is about 41602.0280154706. The cubic root of 1730728735 is about 1200.6313194253.

The spelling of 1730728735 in words is "one billion, seven hundred thirty million, seven hundred twenty-eight thousand, seven hundred thirty-five".