2205810723 has 16 divisors (see below), whose sum is σ = 2961285120. Its totient is φ = 1460457504.

The previous prime is 2205810679. The next prime is 2205810769. The reversal of 2205810723 is 3270185022.

It is a de Polignac number, because none of the positive numbers 2^k-2205810723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2205810793) 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 15 ways as a sum of consecutive naturals, for example, 662140 + ... + 665462.

It is an arithmetic number, because the mean of its divisors is an integer number (185080320).

Almost surely, 2^2205810723 is an apocalyptic number.

2205810723 is a deficient number, since it is larger than the sum of its proper divisors (755474397).

2205810723 is a wasteful number, since it uses less digits than its factorization.

2205810723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4778.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 2205810723 is about 46966.0592662403. The cubic root of 2205810723 is about 1301.7354972712.

Adding to 2205810723 its reverse (3270185022), we get a palindrome (5475995745).

The spelling of 2205810723 in words is "two billion, two hundred five million, eight hundred ten thousand, seven hundred twenty-three".