493723 has 4 divisors (see below), whose sum is σ = 501160. Its totient is φ = 486288.

The previous prime is 493721. The next prime is 493729. The reversal of 493723 is 327394.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327394 = 2 ⋅163697.

It is a cyclic number.

It is not a de Polignac number, because 493723 - 2¹ = 493721 is a prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 493691 and 493700.

It is not an unprimeable number, because it can be changed into a prime (493721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3618 + ... + 3751.

It is an arithmetic number, because the mean of its divisors is an integer number (125290).

2⁴⁹³⁷²³ is an apocalyptic number.

493723 is a deficient number, since it is larger than the sum of its proper divisors (7437).

493723 is an equidigital number, since it uses as much as digits as its factorization.

493723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7436.

The product of its digits is 4536, while the sum is 28.

The square root of 493723 is about 702.6542535273. The cubic root of 493723 is about 79.0365157259.

The spelling of 493723 in words is "four hundred ninety-three thousand, seven hundred twenty-three".