720333 has 10 divisors (see below), whose sum is σ = 1076174. Its totient is φ = 480168.

The previous prime is 720319. The next prime is 720359. The reversal of 720333 is 333027.

It can be written as a sum of positive squares in only one way, i.e., 492804 + 227529 = 702^2 + 477^2 .

It is not a de Polignac number, because 720333 - 2⁵ = 720301 is a prime.

It is a Duffinian number.

720333 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720373) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4366 + ... + 4527.

2⁷²⁰³³³ is an apocalyptic number.

It is an amenable number.

720333 is a deficient number, since it is larger than the sum of its proper divisors (355841).

720333 is an equidigital number, since it uses as much as digits as its factorization.

720333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8905 (or 8896 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 18.

The square root of 720333 is about 848.7243368727. The cubic root of 720333 is about 89.6419104661.

The spelling of 720333 in words is "seven hundred twenty thousand, three hundred thirty-three".