493689 has 8 divisors (see below), whose sum is σ = 752320. Its totient is φ = 282096.

The previous prime is 493657. The next prime is 493693. The reversal of 493689 is 986394.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 493689 - 2⁵ = 493657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11734 + ... + 11775.

It is an arithmetic number, because the mean of its divisors is an integer number (94040).

2⁴⁹³⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

493689 is a deficient number, since it is larger than the sum of its proper divisors (258631).

493689 is a wasteful number, since it uses less digits than its factorization.

493689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23519.

The product of its digits is 46656, while the sum is 39.

The square root of 493689 is about 702.6300591350. The cubic root of 493689 is about 79.0347014135.

The spelling of 493689 in words is "four hundred ninety-three thousand, six hundred eighty-nine".