731742673 has 8 divisors (see below), whose sum is σ = 752150720. Its totient is φ = 711367920.

The previous prime is 731742659. The next prime is 731742689. The reversal of 731742673 is 376247137.

731742673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-731742673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731742623) 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, 40108 + ... + 55426.

It is an arithmetic number, because the mean of its divisors is an integer number (94018840).

Almost surely, 2^731742673 is an apocalyptic number.

It is an amenable number.

731742673 is a deficient number, since it is larger than the sum of its proper divisors (20408047).

731742673 is a wasteful number, since it uses less digits than its factorization.

731742673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16647.

The product of its digits is 148176, while the sum is 40.

The square root of 731742673 is about 27050.7425591240. The cubic root of 731742673 is about 901.1272595225.

The spelling of 731742673 in words is "seven hundred thirty-one million, seven hundred forty-two thousand, six hundred seventy-three".