729103673 has 2 divisors, whose sum is σ = 729103674. Its totient is φ = 729103672.

The previous prime is 729103643. The next prime is 729103681. The reversal of 729103673 is 376301927.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 725386489 + 3717184 = 26933^2 + 1928^2 .

It is an emirp because it is prime and its reverse (376301927) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 729103673 - 2¹² = 729099577 is a prime.

It is not a weakly prime, because it can be changed into another prime (729103643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364551836 + 364551837.

It is an arithmetic number, because the mean of its divisors is an integer number (364551837).

Almost surely, 2^729103673 is an apocalyptic number.

It is an amenable number.

729103673 is a deficient number, since it is larger than the sum of its proper divisors (1).

729103673 is an equidigital number, since it uses as much as digits as its factorization.

729103673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 729103673 is about 27001.9198021178. The cubic root of 729103673 is about 900.0426617637.

The spelling of 729103673 in words is "seven hundred twenty-nine million, one hundred three thousand, six hundred seventy-three".