2720471 has 4 divisors (see below), whose sum is σ = 2929752. Its totient is φ = 2511192.

The previous prime is 2720447. The next prime is 2720503. The reversal of 2720471 is 1740272.

2720471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2720471 - 2¹⁰ = 2719447 is a prime.

It is a super-3 number, since 3×2720471³ = 60402311248581141333, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104621 + ... + 104646.

It is an arithmetic number, because the mean of its divisors is an integer number (732438).

2^2720471 is an apocalyptic number.

2720471 is a deficient number, since it is larger than the sum of its proper divisors (209281).

2720471 is a wasteful number, since it uses less digits than its factorization.

2720471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209280.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 2720471 is about 1649.3850369153. The cubic root of 2720471 is about 139.5986977271.

The spelling of 2720471 in words is "two million, seven hundred twenty thousand, four hundred seventy-one".