730003 has 2 divisors, whose sum is σ = 730004. Its totient is φ = 730002.

The previous prime is 729991. The next prime is 730021. The reversal of 730003 is 300037.

730003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 730003 - 2¹⁷ = 598931 is a prime.

It is not a weakly prime, because it can be changed into another prime (730033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365001 + 365002.

It is an arithmetic number, because the mean of its divisors is an integer number (365002).

2⁷³⁰⁰⁰³ is an apocalyptic number.

730003 is a deficient number, since it is larger than the sum of its proper divisors (1).

730003 is an equidigital number, since it uses as much as digits as its factorization.

730003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63, while the sum is 13.

The square root of 730003 is about 854.4021301472. The cubic root of 730003 is about 90.0412568048.

The spelling of 730003 in words is "seven hundred thirty thousand, three".