729546043 has 2 divisors, whose sum is σ = 729546044. Its totient is φ = 729546042.

The previous prime is 729545987. The next prime is 729546073. The reversal of 729546043 is 340645927.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729546043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 729545987 and 729546005.

It is not a weakly prime, because it can be changed into another prime (729546073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364773021 + 364773022.

It is an arithmetic number, because the mean of its divisors is an integer number (364773022).

Almost surely, 2^729546043 is an apocalyptic number.

729546043 is a deficient number, since it is larger than the sum of its proper divisors (1).

729546043 is an equidigital number, since it uses as much as digits as its factorization.

729546043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 729546043 is about 27010.1100145853. The cubic root of 729546043 is about 900.2246529722.

The spelling of 729546043 in words is "seven hundred twenty-nine million, five hundred forty-six thousand, forty-three".