5721723 has 12 divisors (see below), whose sum is σ = 9445488. Its totient is φ = 3269520.

The previous prime is 5721719. The next prime is 5721743. The reversal of 5721723 is 3271275.

It is not a de Polignac number, because 5721723 - 2² = 5721719 is a prime.

It is a super-2 number, since 2×5721723² = 65476228177458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5721713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45348 + ... + 45473.

It is an arithmetic number, because the mean of its divisors is an integer number (787124).

Almost surely, 2^5721723 is an apocalyptic number.

5721723 is a deficient number, since it is larger than the sum of its proper divisors (3723765).

5721723 is a wasteful number, since it uses less digits than its factorization.

5721723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90834 (or 90831 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 5721723 is about 2392.0123327441. The cubic root of 5721723 is about 178.8582359137.

Adding to 5721723 its reverse (3271275), we get a palindrome (8992998).

The spelling of 5721723 in words is "five million, seven hundred twenty-one thousand, seven hundred twenty-three".