2681723 has 12 divisors (see below), whose sum is σ = 3032400. Its totient is φ = 2368080.

The previous prime is 2681719. The next prime is 2681729. The reversal of 2681723 is 3271862.

It is a happy number.

It is not a de Polignac number, because 2681723 - 2² = 2681719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2681729) 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, 4178 + ... + 4776.

It is an arithmetic number, because the mean of its divisors is an integer number (252700).

2^2681723 is an apocalyptic number.

2681723 is a deficient number, since it is larger than the sum of its proper divisors (350677).

2681723 is a wasteful number, since it uses less digits than its factorization.

2681723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 647 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 2681723 is about 1637.5967147012. The cubic root of 2681723 is about 138.9327521784.

It can be divided in two parts, 268 and 1723, that added together give a palindrome (1991).

The spelling of 2681723 in words is "two million, six hundred eighty-one thousand, seven hundred twenty-three".