730640003 has 8 divisors (see below), whose sum is σ = 769717200. Its totient is φ = 691625088.

The previous prime is 730639997. The next prime is 730640021. The reversal of 730640003 is 300046037.

730640003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 730640003 - 2⁸ = 730639747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730640083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9575 + ... + 39407.

It is an arithmetic number, because the mean of its divisors is an integer number (96214650).

Almost surely, 2^730640003 is an apocalyptic number.

730640003 is a deficient number, since it is larger than the sum of its proper divisors (39077197).

730640003 is a wasteful number, since it uses less digits than its factorization.

730640003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31141.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 730640003 is about 27030.3533643199. The cubic root of 730640003 is about 900.6743928879.

The spelling of 730640003 in words is "seven hundred thirty million, six hundred forty thousand, three".