2723945747 has 4 divisors (see below), whose sum is σ = 2735945736. Its totient is φ = 2711945760.

The previous prime is 2723945711. The next prime is 2723945767. The reversal of 2723945747 is 7475493272.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2723945747 - 2²⁰ = 2722897171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2723945695 and 2723945704.

It is not an unprimeable number, because it can be changed into a prime (2723945767) 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, 5999654 + ... + 6000107.

It is an arithmetic number, because the mean of its divisors is an integer number (683986434).

Almost surely, 2^2723945747 is an apocalyptic number.

2723945747 is a deficient number, since it is larger than the sum of its proper divisors (11999989).

2723945747 is a wasteful number, since it uses less digits than its factorization.

2723945747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11999988.

The product of its digits is 2963520, while the sum is 50.

The square root of 2723945747 is about 52191.4336553423. The cubic root of 2723945747 is about 1396.5810702082.

The spelling of 2723945747 in words is "two billion, seven hundred twenty-three million, nine hundred forty-five thousand, seven hundred forty-seven".