729414073 has 2 divisors, whose sum is σ = 729414074. Its totient is φ = 729414072.

The previous prime is 729414071. The next prime is 729414089. The reversal of 729414073 is 370414927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397882809 + 331531264 = 19947^2 + 18208^2 .

It is a cyclic number.

It is not a de Polignac number, because 729414073 - 2¹ = 729414071 is a prime.

Together with 729414071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (729414071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364707036 + 364707037.

It is an arithmetic number, because the mean of its divisors is an integer number (364707037).

Almost surely, 2^729414073 is an apocalyptic number.

It is an amenable number.

729414073 is a deficient number, since it is larger than the sum of its proper divisors (1).

729414073 is an equidigital number, since it uses as much as digits as its factorization.

729414073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 729414073 is about 27007.6669299664. Note that the first 3 decimals coincide. The cubic root of 729414073 is about 900.1703681591.

The spelling of 729414073 in words is "seven hundred twenty-nine million, four hundred fourteen thousand, seventy-three".