2725813 has 4 divisors (see below), whose sum is σ = 2789248. Its totient is φ = 2662380.

The previous prime is 2725783. The next prime is 2725817. The reversal of 2725813 is 3185272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2725813 - 2⁵ = 2725781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2725817) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 31653 + ... + 31738.

It is an arithmetic number, because the mean of its divisors is an integer number (697312).

2^2725813 is an apocalyptic number.

It is an amenable number.

2725813 is a deficient number, since it is larger than the sum of its proper divisors (63435).

2725813 is an equidigital number, since it uses as much as digits as its factorization.

2725813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63434.

The product of its digits is 3360, while the sum is 28.

The square root of 2725813 is about 1651.0036341571. The cubic root of 2725813 is about 139.6900114075.

The spelling of 2725813 in words is "two million, seven hundred twenty-five thousand, eight hundred thirteen".