2723384645 has 4 divisors (see below), whose sum is σ = 3268061580. Its totient is φ = 2178707712.

The previous prime is 2723384641. The next prime is 2723384669. The reversal of 2723384645 is 5464833272.

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

It can be written as a sum of positive squares in 2 ways, for example, as 394936129 + 2328448516 = 19873^2 + 48254^2 .

It is a cyclic number.

It is not a de Polignac number, because 2723384645 - 2² = 2723384641 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2723384596 and 2723384605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2723384641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272338460 + ... + 272338469.

It is an arithmetic number, because the mean of its divisors is an integer number (817015395).

Almost surely, 2^2723384645 is an apocalyptic number.

It is an amenable number.

2723384645 is a deficient number, since it is larger than the sum of its proper divisors (544676935).

2723384645 is an equidigital number, since it uses as much as digits as its factorization.

2723384645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544676934.

The product of its digits is 967680, while the sum is 44.

The square root of 2723384645 is about 52186.0579561246. The cubic root of 2723384645 is about 1396.4851703242.

The spelling of 2723384645 in words is "two billion, seven hundred twenty-three million, three hundred eighty-four thousand, six hundred forty-five".