493081 has 4 divisors (see below), whose sum is σ = 504592. Its totient is φ = 481572.

The previous prime is 493067. The next prime is 493093. The reversal of 493081 is 180394.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 180394 = 2 ⋅90197.

It is a cyclic number.

It is not a de Polignac number, because 493081 - 2⁵ = 493049 is a prime.

It is a super-2 number, since 2×493081² = 486257745122, which contains 22 as substring.

It is a Duffinian number.

493081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (493001) 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, 5691 + ... + 5776.

It is an arithmetic number, because the mean of its divisors is an integer number (126148).

2⁴⁹³⁰⁸¹ is an apocalyptic number.

It is an amenable number.

493081 is a deficient number, since it is larger than the sum of its proper divisors (11511).

493081 is a wasteful number, since it uses less digits than its factorization.

493081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11510.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 493081 is about 702.1972657309. The cubic root of 493081 is about 79.0022431666.

The spelling of 493081 in words is "four hundred ninety-three thousand, eighty-one".