720479 has 4 divisors (see below), whose sum is σ = 722760. Its totient is φ = 718200.

The previous prime is 720439. The next prime is 720481. The reversal of 720479 is 974027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974027 = 23 ⋅42349.

It is a cyclic number.

It is not a de Polignac number, because 720479 - 2¹² = 716383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572 + ... + 1329.

It is an arithmetic number, because the mean of its divisors is an integer number (180690).

2⁷²⁰⁴⁷⁹ is an apocalyptic number.

720479 is a deficient number, since it is larger than the sum of its proper divisors (2281).

720479 is a wasteful number, since it uses less digits than its factorization.

720479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 720479 is about 848.8103439521. The cubic root of 720479 is about 89.6479663851.

The spelling of 720479 in words is "seven hundred twenty thousand, four hundred seventy-nine".