493381 has 6 divisors (see below), whose sum is σ = 573990. Its totient is φ = 422856.

The previous prime is 493369. The next prime is 493393. The reversal of 493381 is 183394.

It is an interprime number because it is at equal distance from previous prime (493369) and next prime (493393).

It can be written as a sum of positive squares in only one way, i.e., 370881 + 122500 = 609^2 + 350^2 .

It is not a de Polignac number, because 493381 - 2¹¹ = 491333 is a prime.

It is a super-2 number, since 2×493381² = 486849622322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4986 + ... + 5083.

It is an arithmetic number, because the mean of its divisors is an integer number (95665).

2⁴⁹³³⁸¹ is an apocalyptic number.

It is an amenable number.

493381 is a deficient number, since it is larger than the sum of its proper divisors (80609).

493381 is a wasteful number, since it uses less digits than its factorization.

493381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10083 (or 10076 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 493381 is about 702.4108484356. The cubic root of 493381 is about 79.0182620816.

The spelling of 493381 in words is "four hundred ninety-three thousand, three hundred eighty-one".