5021729 has 2 divisors, whose sum is σ = 5021730. Its totient is φ = 5021728.

The previous prime is 5021701. The next prime is 5021771. The reversal of 5021729 is 9271205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4631104 + 390625 = 2152^2 + 625^2 .

It is a cyclic number.

It is not a de Polignac number, because 5021729 - 2¹² = 5017633 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5021698 and 5021707.

It is not a weakly prime, because it can be changed into another prime (5021789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2510864 + 2510865.

It is an arithmetic number, because the mean of its divisors is an integer number (2510865).

Almost surely, 2^5021729 is an apocalyptic number.

It is an amenable number.

5021729 is a deficient number, since it is larger than the sum of its proper divisors (1).

5021729 is an equidigital number, since it uses as much as digits as its factorization.

5021729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 5021729 is about 2240.9214622561. The cubic root of 5021729 is about 171.2449438186.

The spelling of 5021729 in words is "five million, twenty-one thousand, seven hundred twenty-nine".