493945 has 8 divisors (see below), whose sum is σ = 596736. Its totient is φ = 392496.

The previous prime is 493939. The next prime is 493967. The reversal of 493945 is 549394.

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

It is a cyclic number.

It is not a de Polignac number, because 493945 - 2³ = 493937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 493945.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 894 + ... + 1336.

It is an arithmetic number, because the mean of its divisors is an integer number (74592).

2⁴⁹³⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

493945 is a deficient number, since it is larger than the sum of its proper divisors (102791).

493945 is a wasteful number, since it uses less digits than its factorization.

493945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671.

The product of its digits is 19440, while the sum is 34.

The square root of 493945 is about 702.8122082036. The cubic root of 493945 is about 79.0483600713.

The spelling of 493945 in words is "four hundred ninety-three thousand, nine hundred forty-five".