730641473 has 2 divisors, whose sum is σ = 730641474. Its totient is φ = 730641472.

The previous prime is 730641397. The next prime is 730641481. The reversal of 730641473 is 374146037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 724255744 + 6385729 = 26912^2 + 2527^2 .

It is a cyclic number.

It is not a de Polignac number, because 730641473 - 2¹⁴ = 730625089 is a prime.

It is not a weakly prime, because it can be changed into another prime (730641493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365320736 + 365320737.

It is an arithmetic number, because the mean of its divisors is an integer number (365320737).

Almost surely, 2^730641473 is an apocalyptic number.

It is an amenable number.

730641473 is a deficient number, since it is larger than the sum of its proper divisors (1).

730641473 is an equidigital number, since it uses as much as digits as its factorization.

730641473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 730641473 is about 27030.3805559596. The cubic root of 730641473 is about 900.6749969202.

The spelling of 730641473 in words is "seven hundred thirty million, six hundred forty-one thousand, four hundred seventy-three".