2730723 has 12 divisors (see below), whose sum is σ = 3754968. Its totient is φ = 1764160.

The previous prime is 2730713. The next prime is 2730743. The reversal of 2730723 is 3270372.

It is not a de Polignac number, because 2730723 - 2⁵ = 2730691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2730693 and 2730702.

It is not an unprimeable number, because it can be changed into a prime (2730703) 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, 18253 + ... + 18401.

It is an arithmetic number, because the mean of its divisors is an integer number (312914).

2^2730723 is an apocalyptic number.

2730723 is a deficient number, since it is larger than the sum of its proper divisors (1024245).

2730723 is an equidigital number, since it uses as much as digits as its factorization.

2730723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 2730723 is about 1652.4899394550. The cubic root of 2730723 is about 139.7738355172.

The spelling of 2730723 in words is "two million, seven hundred thirty thousand, seven hundred twenty-three".