732720723 has 16 divisors (see below), whose sum is σ = 1182205440. Its totient is φ = 394068096.

The previous prime is 732720719. The next prime is 732720733. The reversal of 732720723 is 327027237.

It is not a de Polignac number, because 732720723 - 2² = 732720719 is a prime.

It is a super-3 number, since 3×732720723³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (732720733) 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 15 ways as a sum of consecutive naturals, for example, 1025863 + ... + 1026576.

It is an arithmetic number, because the mean of its divisors is an integer number (73887840).

Almost surely, 2^732720723 is an apocalyptic number.

732720723 is a deficient number, since it is larger than the sum of its proper divisors (449484717).

732720723 is a wasteful number, since it uses less digits than its factorization.

732720723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052466.

The product of its (nonzero) digits is 24696, while the sum is 33.

The square root of 732720723 is about 27068.8145843145. The cubic root of 732720723 is about 901.5285641383.

The spelling of 732720723 in words is "seven hundred thirty-two million, seven hundred twenty thousand, seven hundred twenty-three".