729019 has 2 divisors, whose sum is σ = 729020. Its totient is φ = 729018.

The previous prime is 728993. The next prime is 729023. The reversal of 729019 is 910927.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 729019 - 2⁷ = 728891 is a prime.

It is a super-2 number, since 2×729019² = 1062937404722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (729059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364509 + 364510.

It is an arithmetic number, because the mean of its divisors is an integer number (364510).

2⁷²⁹⁰¹⁹ is an apocalyptic number.

729019 is a deficient number, since it is larger than the sum of its proper divisors (1).

729019 is an equidigital number, since it uses as much as digits as its factorization.

729019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 729019 is about 853.8260947055. The cubic root of 729019 is about 90.0007818862. Note that the first 3 decimals are identical.

The spelling of 729019 in words is "seven hundred twenty-nine thousand, nineteen".