493911 has 16 divisors (see below), whose sum is σ = 798720. Its totient is φ = 299160.

The previous prime is 493897. The next prime is 493919. The reversal of 493911 is 119394.

It is not a de Polignac number, because 493911 - 2⁹ = 493399 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 493911.

It is not an unprimeable number, because it can be changed into a prime (493919) 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 15 ways as a sum of consecutive naturals, for example, 535 + ... + 1128.

It is an arithmetic number, because the mean of its divisors is an integer number (49920).

2⁴⁹³⁹¹¹ is an apocalyptic number.

493911 is a deficient number, since it is larger than the sum of its proper divisors (304809).

493911 is a wasteful number, since it uses less digits than its factorization.

493911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683 (or 1677 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 493911 is about 702.7880192490. The cubic root of 493911 is about 79.0465463027.

It can be divided in two parts, 4939 and 11, that added together give a triangular number (4950 = T₉₉).

The spelling of 493911 in words is "four hundred ninety-three thousand, nine hundred eleven".