730553 has 2 divisors, whose sum is σ = 730554. Its totient is φ = 730552.

The previous prime is 730537. The next prime is 730559. The reversal of 730553 is 355037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 719104 + 11449 = 848^2 + 107^2 .

It is an emirp because it is prime and its reverse (355037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 730553 - 2⁴ = 730537 is a prime.

It is not a weakly prime, because it can be changed into another prime (730559) 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, 365276 + 365277.

It is an arithmetic number, because the mean of its divisors is an integer number (365277).

2⁷³⁰⁵⁵³ is an apocalyptic number.

It is an amenable number.

730553 is a deficient number, since it is larger than the sum of its proper divisors (1).

730553 is an equidigital number, since it uses as much as digits as its factorization.

730553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1575, while the sum is 23.

The square root of 730553 is about 854.7239320389. The cubic root of 730553 is about 90.0638641362.

The spelling of 730553 in words is "seven hundred thirty thousand, five hundred fifty-three".