729473 has 2 divisors, whose sum is σ = 729474. Its totient is φ = 729472.

The previous prime is 729457. The next prime is 729493. The reversal of 729473 is 374927.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 692224 + 37249 = 832^2 + 193^2 .

It is a cyclic number.

It is not a de Polignac number, because 729473 - 2⁴ = 729457 is a prime.

It is not a weakly prime, because it can be changed into another prime (729403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364736 + 364737.

It is an arithmetic number, because the mean of its divisors is an integer number (364737).

2⁷²⁹⁴⁷³ is an apocalyptic number.

It is an amenable number.

729473 is a deficient number, since it is larger than the sum of its proper divisors (1).

729473 is an equidigital number, since it uses as much as digits as its factorization.

729473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 32.

The square root of 729473 is about 854.0919154283. The cubic root of 729473 is about 90.0194608122.

The spelling of 729473 in words is "seven hundred twenty-nine thousand, four hundred seventy-three".