493501 has 4 divisors (see below), whose sum is σ = 496252. Its totient is φ = 490752.

The previous prime is 493481. The next prime is 493523. The reversal of 493501 is 105394.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 105394 = 2 ⋅52697.

It can be written as a sum of positive squares in 2 ways, for example, as 164025 + 329476 = 405^2 + 574^2 .

It is a cyclic number.

It is not a de Polignac number, because 493501 - 2¹⁷ = 362429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086 + ... + 1471.

It is an arithmetic number, because the mean of its divisors is an integer number (124063).

2⁴⁹³⁵⁰¹ is an apocalyptic number.

493501 is the 376-th centered heptagonal number.

It is an amenable number.

493501 is a deficient number, since it is larger than the sum of its proper divisors (2751).

493501 is a wasteful number, since it uses less digits than its factorization.

493501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 493501 is about 702.4962633353. The cubic root of 493501 is about 79.0246678294.

Adding to 493501 its reverse (105394), we get a palindrome (598895).

The spelling of 493501 in words is "four hundred ninety-three thousand, five hundred one".