720471 has 16 divisors (see below), whose sum is σ = 1015808. Its totient is φ = 453600.

The previous prime is 720439. The next prime is 720481. The reversal of 720471 is 174027.

It is not a de Polignac number, because 720471 - 2⁵ = 720439 is a prime.

It is a super-3 number, since 3×720471³ = 1121942935443141333, which contains 333 as substring.

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 720471.

It is not an unprimeable number, because it can be changed into a prime (720481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5610 + ... + 5736.

It is an arithmetic number, because the mean of its divisors is an integer number (63488).

2⁷²⁰⁴⁷¹ is an apocalyptic number.

720471 is a deficient number, since it is larger than the sum of its proper divisors (295337).

720471 is a wasteful number, since it uses less digits than its factorization.

720471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 720471 is about 848.8056314611. The cubic root of 720471 is about 89.6476345751.

Adding to 720471 its reverse (174027), we get a palindrome (894498).

The spelling of 720471 in words is "seven hundred twenty thousand, four hundred seventy-one", and thus it is an iban number.