2723689 has 4 divisors (see below), whose sum is σ = 2883924. Its totient is φ = 2563456.

The previous prime is 2723687. The next prime is 2723701. The reversal of 2723689 is 9863272.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1440000 + 1283689 = 1200^2 + 1133^2 .

It is a cyclic number.

It is not a de Polignac number, because 2723689 - 2¹ = 2723687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2723687) 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, 80092 + ... + 80125.

It is an arithmetic number, because the mean of its divisors is an integer number (720981).

2^2723689 is an apocalyptic number.

It is an amenable number.

2723689 is a deficient number, since it is larger than the sum of its proper divisors (160235).

2723689 is a wasteful number, since it uses less digits than its factorization.

2723689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160234.

The product of its digits is 36288, while the sum is 37.

The square root of 2723689 is about 1650.3602637000. The cubic root of 2723689 is about 139.6537190325.

It can be divided in two parts, 27 and 23689, that added together give a square (23716 = 154²).

The spelling of 2723689 in words is "two million, seven hundred twenty-three thousand, six hundred eighty-nine".