2012723 has 4 divisors (see below), whose sum is σ = 2032368. Its totient is φ = 1993080.

The previous prime is 2012719. The next prime is 2012741. The reversal of 2012723 is 3272102.

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 2012723 - 2² = 2012719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012713) 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, 9668 + ... + 9873.

It is an arithmetic number, because the mean of its divisors is an integer number (508092).

2^2012723 is an apocalyptic number.

2012723 is a deficient number, since it is larger than the sum of its proper divisors (19645).

2012723 is a wasteful number, since it uses less digits than its factorization.

2012723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19644.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 2012723 is about 1418.7046909065. The cubic root of 2012723 is about 126.2587067158.

Adding to 2012723 its reverse (3272102), we get a palindrome (5284825).

The spelling of 2012723 in words is "two million, twelve thousand, seven hundred twenty-three".