493687 has 4 divisors (see below), whose sum is σ = 495360. Its totient is φ = 492016.

The previous prime is 493657. The next prime is 493693. The reversal of 493687 is 786394.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 493687 - 2¹¹ = 491639 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 (493607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262 + ... + 1027.

It is an arithmetic number, because the mean of its divisors is an integer number (123840).

493687 is a Friedman number, since it can be written as 648+79^3, using all its digits and the basic arithmetic operations.

2⁴⁹³⁶⁸⁷ is an apocalyptic number.

493687 is a deficient number, since it is larger than the sum of its proper divisors (1673).

493687 is a wasteful number, since it uses less digits than its factorization.

493687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672.

The product of its digits is 36288, while the sum is 37.

The square root of 493687 is about 702.6286359095. The cubic root of 493687 is about 79.0345946867.

The spelling of 493687 in words is "four hundred ninety-three thousand, six hundred eighty-seven".