493508423 has 2 divisors, whose sum is σ = 493508424. Its totient is φ = 493508422.

The previous prime is 493508383. The next prime is 493508429. The reversal of 493508423 is 324805394.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 493508423 - 2¹² = 493504327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493508429) 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, 246754211 + 246754212.

It is an arithmetic number, because the mean of its divisors is an integer number (246754212).

Almost surely, 2^493508423 is an apocalyptic number.

493508423 is a deficient number, since it is larger than the sum of its proper divisors (1).

493508423 is an equidigital number, since it uses as much as digits as its factorization.

493508423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 493508423 is about 22215.0494710230. The cubic root of 493508423 is about 790.2506404419.

The spelling of 493508423 in words is "four hundred ninety-three million, five hundred eight thousand, four hundred twenty-three".