5729729 has 2 divisors, whose sum is σ = 5729730. Its totient is φ = 5729728.

The previous prime is 5729701. The next prime is 5729741. The reversal of 5729729 is 9279275.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3713329 + 2016400 = 1927^2 + 1420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5729729 is a prime.

It is not a weakly prime, because it can be changed into another prime (5729329) 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 as a sum of consecutive naturals, namely, 2864864 + 2864865.

It is an arithmetic number, because the mean of its divisors is an integer number (2864865).

Almost surely, 2^5729729 is an apocalyptic number.

It is an amenable number.

5729729 is a deficient number, since it is larger than the sum of its proper divisors (1).

5729729 is an equidigital number, since it uses as much as digits as its factorization.

5729729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 41.

The square root of 5729729 is about 2393.6852341108. The cubic root of 5729729 is about 178.9416182378.

It can be divided in two parts, 572 and 9729, that added together give a palindrome (10301).

The spelling of 5729729 in words is "five million, seven hundred twenty-nine thousand, seven hundred twenty-nine".