5711729 has 4 divisors (see below), whose sum is σ = 5724900. Its totient is φ = 5698560.

The previous prime is 5711681. The next prime is 5711747. The reversal of 5711729 is 9271175.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4326400 + 1385329 = 2080^2 + 1177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5711729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5711695 and 5711704.

It is not an unprimeable number, because it can be changed into a prime (5711759) 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, 5912 + ... + 6809.

It is an arithmetic number, because the mean of its divisors is an integer number (1431225).

Almost surely, 2^5711729 is an apocalyptic number.

It is an amenable number.

5711729 is a deficient number, since it is larger than the sum of its proper divisors (13171).

5711729 is a wasteful number, since it uses less digits than its factorization.

5711729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13170.

The product of its digits is 4410, while the sum is 32.

The square root of 5711729 is about 2389.9223836769. The cubic root of 5711729 is about 178.7540393891.

The spelling of 5711729 in words is "five million, seven hundred eleven thousand, seven hundred twenty-nine".