2722747 has 4 divisors (see below), whose sum is σ = 2730240. Its totient is φ = 2715256.

The previous prime is 2722729. The next prime is 2722751. The reversal of 2722747 is 7472272.

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 2722747 - 2⁷ = 2722619 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2722147) 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, 3172 + ... + 3937.

It is an arithmetic number, because the mean of its divisors is an integer number (682560).

2^2722747 is an apocalyptic number.

2722747 is a deficient number, since it is larger than the sum of its proper divisors (7493).

2722747 is an equidigital number, since it uses as much as digits as its factorization.

2722747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7492.

The product of its digits is 10976, while the sum is 31.

The square root of 2722747 is about 1650.0748467873. The cubic root of 2722747 is about 139.6376172220.

The spelling of 2722747 in words is "two million, seven hundred twenty-two thousand, seven hundred forty-seven".