2723847946 has 4 divisors (see below), whose sum is σ = 4085771922. Its totient is φ = 1361923972.

The previous prime is 2723847941. The next prime is 2723847947. The reversal of 2723847946 is 6497483272.

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

It can be written as a sum of positive squares in only one way, i.e., 2611721025 + 112126921 = 51105^2 + 10589^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2723847893 and 2723847902.

It is not an unprimeable number, because it can be changed into a prime (2723847941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680961985 + ... + 680961988.

Almost surely, 2^2723847946 is an apocalyptic number.

2723847946 is a deficient number, since it is larger than the sum of its proper divisors (1361923976).

2723847946 is a wasteful number, since it uses less digits than its factorization.

2723847946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361923975.

The product of its digits is 4064256, while the sum is 52.

The square root of 2723847946 is about 52190.4967019859. The cubic root of 2723847946 is about 1396.5643556487.

The spelling of 2723847946 in words is "two billion, seven hundred twenty-three million, eight hundred forty-seven thousand, nine hundred forty-six".