493697 has 8 divisors (see below), whose sum is σ = 529416. Its totient is φ = 458752.

The previous prime is 493693. The next prime is 493709. The reversal of 493697 is 796394.

It can be written as a sum of positive squares in 4 ways, for example, as 132496 + 361201 = 364^2 + 601^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 3-Lehmer number, since φ(493697) divides (493697-1)³.

It is a cyclic number.

It is not a de Polignac number, because 493697 - 2² = 493693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 493697.

It is not an unprimeable number, because it can be changed into a prime (493693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1793 + ... + 2049.

It is an arithmetic number, because the mean of its divisors is an integer number (66177).

It is a Poulet number, since it divides 2⁴⁹³⁶⁹⁶-1.

2⁴⁹³⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

493697 is a deficient number, since it is larger than the sum of its proper divisors (35719).

493697 is a wasteful number, since it uses less digits than its factorization.

493697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387.

The product of its digits is 40824, while the sum is 38.

The square root of 493697 is about 702.6357520081. The cubic root of 493697 is about 79.0351283181.

The spelling of 493697 in words is "four hundred ninety-three thousand, six hundred ninety-seven".