4259729 has 2 divisors, whose sum is σ = 4259730. Its totient is φ = 4259728.

The previous prime is 4259719. The next prime is 4259753. The reversal of 4259729 is 9279524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4243600 + 16129 = 2060^2 + 127^2 .

It is a cyclic number.

It is not a de Polignac number, because 4259729 - 2⁴ = 4259713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4259692 and 4259701.

It is not a weakly prime, because it can be changed into another prime (4259719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2129864 + 2129865.

It is an arithmetic number, because the mean of its divisors is an integer number (2129865).

Almost surely, 2^4259729 is an apocalyptic number.

It is an amenable number.

4259729 is a deficient number, since it is larger than the sum of its proper divisors (1).

4259729 is an equidigital number, since it uses as much as digits as its factorization.

4259729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 4259729 is about 2063.9110930464. The cubic root of 4259729 is about 162.1040965875.

The spelling of 4259729 in words is "four million, two hundred fifty-nine thousand, seven hundred twenty-nine".