720734 has 8 divisors (see below), whose sum is σ = 1235568. Its totient is φ = 308880.

The previous prime is 720703. The next prime is 720743. The reversal of 720734 is 437027.

720734 is nontrivially palindromic in base 15.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25727 + ... + 25754.

It is an arithmetic number, because the mean of its divisors is an integer number (154446).

2⁷²⁰⁷³⁴ is an apocalyptic number.

720734 is a deficient number, since it is larger than the sum of its proper divisors (514834).

720734 is a wasteful number, since it uses less digits than its factorization.

720734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51490.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 720734 is about 848.9605408969. The cubic root of 720734 is about 89.6585415418.

The spelling of 720734 in words is "seven hundred twenty thousand, seven hundred thirty-four".