730549243 has 2 divisors, whose sum is σ = 730549244. Its totient is φ = 730549242.

The previous prime is 730549217. The next prime is 730549249. The reversal of 730549243 is 342945037.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 730549243 - 2²⁵ = 696994811 is a prime.

It is not a weakly prime, because it can be changed into another prime (730549249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365274621 + 365274622.

It is an arithmetic number, because the mean of its divisors is an integer number (365274622).

Almost surely, 2^730549243 is an apocalyptic number.

730549243 is a deficient number, since it is larger than the sum of its proper divisors (1).

730549243 is an equidigital number, since it uses as much as digits as its factorization.

730549243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 730549243 is about 27028.6744588039. The cubic root of 730549243 is about 900.6370974608.

The spelling of 730549243 in words is "seven hundred thirty million, five hundred forty-nine thousand, two hundred forty-three".