720713 has 8 divisors (see below), whose sum is σ = 830400. Its totient is φ = 612720.

The previous prime is 720703. The next prime is 720743. The reversal of 720713 is 317027.

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 720713 - 2⁴ = 720697 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 720713.

It is not an unprimeable number, because it can be changed into a prime (720703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698 + ... + 1388.

It is an arithmetic number, because the mean of its divisors is an integer number (103800).

2⁷²⁰⁷¹³ is an apocalyptic number.

It is an amenable number.

720713 is a deficient number, since it is larger than the sum of its proper divisors (109687).

720713 is a wasteful number, since it uses less digits than its factorization.

720713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847.

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 720713 is about 848.9481727408. The cubic root of 720713 is about 89.6576707408.

It can be divided in two parts, 7 and 20713, that multiplied together give a triangular number (144991 = T₅₃₈).

The spelling of 720713 in words is "seven hundred twenty thousand, seven hundred thirteen".