493623 has 12 divisors (see below), whose sum is σ = 768040. Its totient is φ = 303696.

The previous prime is 493621. The next prime is 493627. The reversal of 493623 is 326394.

It is not a de Polignac number, because 493623 - 2¹ = 493621 is a prime.

It is a super-2 number, since 2×493623² = 487327332258, which contains 22 as substring.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1993 + ... + 2226.

2⁴⁹³⁶²³ is an apocalyptic number.

493623 is a deficient number, since it is larger than the sum of its proper divisors (274417).

493623 is a wasteful number, since it uses less digits than its factorization.

493623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238 (or 4235 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 493623 is about 702.5830911714. The cubic root of 493623 is about 79.0311792753.

The spelling of 493623 in words is "four hundred ninety-three thousand, six hundred twenty-three".