494506393 has 2 divisors, whose sum is σ = 494506394. Its totient is φ = 494506392.

The previous prime is 494506391. The next prime is 494506423. The reversal of 494506393 is 393605494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398721024 + 95785369 = 19968^2 + 9787^2 .

It is a cyclic number.

It is not a de Polignac number, because 494506393 - 2¹ = 494506391 is a prime.

Together with 494506391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (494506391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247253196 + 247253197.

It is an arithmetic number, because the mean of its divisors is an integer number (247253197).

Almost surely, 2^494506393 is an apocalyptic number.

It is an amenable number.

494506393 is a deficient number, since it is larger than the sum of its proper divisors (1).

494506393 is an equidigital number, since it uses as much as digits as its factorization.

494506393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 43.

The square root of 494506393 is about 22237.4997020798. The cubic root of 494506393 is about 790.7829619400.

The spelling of 494506393 in words is "four hundred ninety-four million, five hundred six thousand, three hundred ninety-three".