2213723 has 8 divisors (see below), whose sum is σ = 2367792. Its totient is φ = 2062336.

The previous prime is 2213711. The next prime is 2213759. The reversal of 2213723 is 3273122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2213723 - 2¹⁰ = 2212699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213695 and 2213704.

It is not an unprimeable number, because it can be changed into a prime (2213423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1211 + ... + 2427.

It is an arithmetic number, because the mean of its divisors is an integer number (295974).

2^2213723 is an apocalyptic number.

2213723 is a deficient number, since it is larger than the sum of its proper divisors (154069).

2213723 is a wasteful number, since it uses less digits than its factorization.

2213723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341.

The product of its digits is 504, while the sum is 20.

The square root of 2213723 is about 1487.8585282210. The cubic root of 2213723 is about 130.3290088388.

Adding to 2213723 its reverse (3273122), we get a palindrome (5486845).

The spelling of 2213723 in words is "two million, two hundred thirteen thousand, seven hundred twenty-three".