2724709 has 8 divisors (see below), whose sum is σ = 3107160. Its totient is φ = 2366976.

The previous prime is 2724703. The next prime is 2724719. The reversal of 2724709 is 9074272.

It is a happy number.

2724709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2209 + 2722500 = 47^2 + 1650^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2724709 - 2¹¹ = 2722661 is a prime.

It is a Duffinian number.

2724709 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2724703) 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 7 ways as a sum of consecutive naturals, for example, 5944 + ... + 6385.

It is an arithmetic number, because the mean of its divisors is an integer number (388395).

2^2724709 is an apocalyptic number.

It is an amenable number.

2724709 is a deficient number, since it is larger than the sum of its proper divisors (382451).

2724709 is a wasteful number, since it uses less digits than its factorization.

2724709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12359.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 2724709 is about 1650.6692582101. The cubic root of 2724709 is about 139.6711499280.

The spelling of 2724709 in words is "two million, seven hundred twenty-four thousand, seven hundred nine".