730668923 has 2 divisors, whose sum is σ = 730668924. Its totient is φ = 730668922.

The previous prime is 730668821. The next prime is 730668947. The reversal of 730668923 is 329866037.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 730668923 - 2¹⁴ = 730652539 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (730668223) 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, 365334461 + 365334462.

It is an arithmetic number, because the mean of its divisors is an integer number (365334462).

Almost surely, 2^730668923 is an apocalyptic number.

730668923 is a deficient number, since it is larger than the sum of its proper divisors (1).

730668923 is an equidigital number, since it uses as much as digits as its factorization.

730668923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 730668923 is about 27030.8883131872. Note that the first 3 decimals coincide. The cubic root of 730668923 is about 900.6862761500.

The spelling of 730668923 in words is "seven hundred thirty million, six hundred sixty-eight thousand, nine hundred twenty-three".