2651723 has 4 divisors (see below), whose sum is σ = 2662968. Its totient is φ = 2640480.

The previous prime is 2651717. The next prime is 2651729. The reversal of 2651723 is 3271562.

2651723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (2651717) and next prime (2651729).

It is a cyclic number.

It is not a de Polignac number, because 2651723 - 2⁴ = 2651707 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2651692 and 2651701.

It is not an unprimeable number, because it can be changed into a prime (2651729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5261 + ... + 5742.

It is an arithmetic number, because the mean of its divisors is an integer number (665742).

2^2651723 is an apocalyptic number.

2651723 is a deficient number, since it is larger than the sum of its proper divisors (11245).

2651723 is a wasteful number, since it uses less digits than its factorization.

2651723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11244.

The product of its digits is 2520, while the sum is 26.

The square root of 2651723 is about 1628.4111888586. The cubic root of 2651723 is about 138.4127354993.

The spelling of 2651723 in words is "two million, six hundred fifty-one thousand, seven hundred twenty-three".