4556729 has 2 divisors, whose sum is σ = 4556730. Its totient is φ = 4556728.

The previous prime is 4556719. The next prime is 4556759. The reversal of 4556729 is 9276554.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3610000 + 946729 = 1900^2 + 973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4556729 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4556692 and 4556701.

It is not a weakly prime, because it can be changed into another prime (4556719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2278364 + 2278365.

It is an arithmetic number, because the mean of its divisors is an integer number (2278365).

Almost surely, 2^4556729 is an apocalyptic number.

It is an amenable number.

4556729 is a deficient number, since it is larger than the sum of its proper divisors (1).

4556729 is an equidigital number, since it uses as much as digits as its factorization.

4556729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 4556729 is about 2134.6496199611. The cubic root of 4556729 is about 165.7872267861.

The spelling of 4556729 in words is "four million, five hundred fifty-six thousand, seven hundred twenty-nine".