730447 has 2 divisors, whose sum is σ = 730448. Its totient is φ = 730446.

The previous prime is 730421. The next prime is 730451. The reversal of 730447 is 744037.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-730447 is a prime.

730447 is a lucky number.

It is equal to p₅₈₈₁₃ and since 730447 and 58813 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (730487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365223 + 365224.

It is an arithmetic number, because the mean of its divisors is an integer number (365224).

2⁷³⁰⁴⁴⁷ is an apocalyptic number.

730447 is a deficient number, since it is larger than the sum of its proper divisors (1).

730447 is an equidigital number, since it uses as much as digits as its factorization.

730447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 730447 is about 854.6619214637. The cubic root of 730447 is about 90.0595079698.

The spelling of 730447 in words is "seven hundred thirty thousand, four hundred forty-seven".