493997 has 4 divisors (see below), whose sum is σ = 564576. Its totient is φ = 423420.

The previous prime is 493993. The next prime is 494023. The reversal of 493997 is 799394.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 493997 - 2² = 493993 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 493997.

It is not an unprimeable number, because it can be changed into a prime (493993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35279 + ... + 35292.

It is an arithmetic number, because the mean of its divisors is an integer number (141144).

2⁴⁹³⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

493997 is a deficient number, since it is larger than the sum of its proper divisors (70579).

493997 is an equidigital number, since it uses as much as digits as its factorization.

493997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70578.

The product of its digits is 61236, while the sum is 41.

The square root of 493997 is about 702.8492014650. The cubic root of 493997 is about 79.0511339095.

The spelling of 493997 in words is "four hundred ninety-three thousand, nine hundred ninety-seven".