2724845 has 8 divisors (see below), whose sum is σ = 3462264. Its totient is φ = 2051584.

The previous prime is 2724829. The next prime is 2724859. The reversal of 2724845 is 5484272.

It can be written as a sum of positive squares in 4 ways, for example, as 1510441 + 1214404 = 1229^2 + 1102^2 .

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 2724845 - 2⁴ = 2724829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15944 + ... + 16113.

It is an arithmetic number, because the mean of its divisors is an integer number (432783).

2^2724845 is an apocalyptic number.

It is an amenable number.

2724845 is a deficient number, since it is larger than the sum of its proper divisors (737419).

2724845 is a wasteful number, since it uses less digits than its factorization.

2724845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32079.

The product of its digits is 17920, while the sum is 32.

The square root of 2724845 is about 1650.7104531080. The cubic root of 2724845 is about 139.6734737187.

The spelling of 2724845 in words is "two million, seven hundred twenty-four thousand, eight hundred forty-five".