1731728733 has 8 divisors (see below), whose sum is σ = 2638824768. Its totient is φ = 989559264.

The previous prime is 1731728659. The next prime is 1731728737. The reversal of 1731728733 is 3378271371.

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

It is not a de Polignac number, because 1731728733 - 2¹⁴ = 1731712349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1731728737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41231616 + ... + 41231657.

It is an arithmetic number, because the mean of its divisors is an integer number (329853096).

Almost surely, 2^1731728733 is an apocalyptic number.

It is an amenable number.

1731728733 is a deficient number, since it is larger than the sum of its proper divisors (907096035).

1731728733 is an equidigital number, since it uses as much as digits as its factorization.

1731728733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82463283.

The product of its digits is 148176, while the sum is 42.

The square root of 1731728733 is about 41614.0449007303. The cubic root of 1731728733 is about 1200.8625125504.

The spelling of 1731728733 in words is "one billion, seven hundred thirty-one million, seven hundred twenty-eight thousand, seven hundred thirty-three".