720710 has 16 divisors (see below), whose sum is σ = 1312416. Its totient is φ = 284928.

The previous prime is 720703. The next prime is 720743. The reversal of 720710 is 17027.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

720710 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 599 + ... + 1341.

It is an arithmetic number, because the mean of its divisors is an integer number (82026).

2⁷²⁰⁷¹⁰ is an apocalyptic number.

720710 is a deficient number, since it is larger than the sum of its proper divisors (591706).

720710 is a wasteful number, since it uses less digits than its factorization.

720710 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 98, while the sum is 17.

The square root of 720710 is about 848.9464058467. The cubic root of 720710 is about 89.6575463392.

Adding to 720710 its reverse (17027), we get a palindrome (737737).

The spelling of 720710 in words is "seven hundred twenty thousand, seven hundred ten", and thus it is an iban number.