729656143 has 2 divisors, whose sum is σ = 729656144. Its totient is φ = 729656142.

The previous prime is 729656119. The next prime is 729656149. The reversal of 729656143 is 341656927.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 729656143 - 2⁵ = 729656111 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 729656143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (729656149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364828071 + 364828072.

It is an arithmetic number, because the mean of its divisors is an integer number (364828072).

Almost surely, 2^729656143 is an apocalyptic number.

729656143 is a deficient number, since it is larger than the sum of its proper divisors (1).

729656143 is an equidigital number, since it uses as much as digits as its factorization.

729656143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 729656143 is about 27012.1480634177. The cubic root of 729656143 is about 900.2699367253.

The spelling of 729656143 in words is "seven hundred twenty-nine million, six hundred fifty-six thousand, one hundred forty-three".