493995923 has 2 divisors, whose sum is σ = 493995924. Its totient is φ = 493995922.

The previous prime is 493995907. The next prime is 493995959. The reversal of 493995923 is 329599394.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 493995923 - 2⁴ = 493995907 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (493995973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246997961 + 246997962.

It is an arithmetic number, because the mean of its divisors is an integer number (246997962).

Almost surely, 2^493995923 is an apocalyptic number.

493995923 is a deficient number, since it is larger than the sum of its proper divisors (1).

493995923 is an equidigital number, since it uses as much as digits as its factorization.

493995923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2361960, while the sum is 53.

The square root of 493995923 is about 22226.0190542526. The cubic root of 493995923 is about 790.5107646104.

The spelling of 493995923 in words is "four hundred ninety-three million, nine hundred ninety-five thousand, nine hundred twenty-three".