493923 has 16 divisors (see below), whose sum is σ = 700416. Its totient is φ = 309120.

The previous prime is 493919. The next prime is 493931. The reversal of 493923 is 329394.

It is not a de Polignac number, because 493923 - 2² = 493919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (493973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4315 + ... + 4427.

It is an arithmetic number, because the mean of its divisors is an integer number (43776).

2⁴⁹³⁹²³ is an apocalyptic number.

493923 is a deficient number, since it is larger than the sum of its proper divisors (206493).

493923 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (493922) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (194).

493923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194.

The product of its digits is 5832, while the sum is 30.

The square root of 493923 is about 702.7965566222. The cubic root of 493923 is about 79.0471864658.

The spelling of 493923 in words is "four hundred ninety-three thousand, nine hundred twenty-three".