2742723 has 12 divisors (see below), whose sum is σ = 3984760. Its totient is φ = 1817856.

The previous prime is 2742721. The next prime is 2742737. The reversal of 2742723 is 3272472.

It is not a de Polignac number, because 2742723 - 2¹ = 2742721 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 7⁴ + 4⁵ + 2¹⁹ + 7⁶ + 2²¹ + 3⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2742721) 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, 948 + ... + 2526.

2^2742723 is an apocalyptic number.

2742723 is a deficient number, since it is larger than the sum of its proper divisors (1242037).

2742723 is a wasteful number, since it uses less digits than its factorization.

2742723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778 (or 1775 counting only the distinct ones).

The product of its digits is 4704, while the sum is 27.

The square root of 2742723 is about 1656.1168437040. The cubic root of 2742723 is about 139.9782789431.

The spelling of 2742723 in words is "two million, seven hundred forty-two thousand, seven hundred twenty-three".