493685693 has 2 divisors, whose sum is σ = 493685694. Its totient is φ = 493685692.

The previous prime is 493685669. The next prime is 493685719. The reversal of 493685693 is 396586394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 493417369 + 268324 = 22213^2 + 518^2 .

It is a cyclic number.

It is not a de Polignac number, because 493685693 - 2⁶ = 493685629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493685663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246842846 + 246842847.

It is an arithmetic number, because the mean of its divisors is an integer number (246842847).

Almost surely, 2^493685693 is an apocalyptic number.

It is an amenable number.

493685693 is a deficient number, since it is larger than the sum of its proper divisors (1).

493685693 is an equidigital number, since it uses as much as digits as its factorization.

493685693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4199040, while the sum is 53.

The square root of 493685693 is about 22219.0389756173. The cubic root of 493685693 is about 790.3452494053.

The spelling of 493685693 in words is "four hundred ninety-three million, six hundred eighty-five thousand, six hundred ninety-three".