6720471 has 12 divisors (see below), whose sum is σ = 10218520. Its totient is φ = 4244400.

The previous prime is 6720443. The next prime is 6720473. The reversal of 6720471 is 1740276.

6720471 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6720471 - 2⁶ = 6720407 is a prime.

It is a super-3 number, since 3×6720471³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

6720471 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6720473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19480 + ... + 19821.

Almost surely, 2^6720471 is an apocalyptic number.

6720471 is a deficient number, since it is larger than the sum of its proper divisors (3498049).

6720471 is a wasteful number, since it uses less digits than its factorization.

6720471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39326 (or 39323 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 6720471 is about 2592.3871238687. The cubic root of 6720471 is about 188.7121679070.

The spelling of 6720471 in words is "six million, seven hundred twenty thousand, four hundred seventy-one".