729690343 has 2 divisors, whose sum is σ = 729690344. Its totient is φ = 729690342.

The previous prime is 729690331. The next prime is 729690391. The reversal of 729690343 is 343096927.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729690343 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 729690343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (729690323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364845171 + 364845172.

It is an arithmetic number, because the mean of its divisors is an integer number (364845172).

Almost surely, 2^729690343 is an apocalyptic number.

729690343 is a deficient number, since it is larger than the sum of its proper divisors (1).

729690343 is an equidigital number, since it uses as much as digits as its factorization.

729690343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 729690343 is about 27012.7811045068. The cubic root of 729690343 is about 900.2840021410.

The spelling of 729690343 in words is "seven hundred twenty-nine million, six hundred ninety thousand, three hundred forty-three".