493478 has 4 divisors (see below), whose sum is σ = 740220. Its totient is φ = 246738.

The previous prime is 493463. The next prime is 493481. The reversal of 493478 is 874394.

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

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

493478 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 123368 + ... + 123371.

It is an arithmetic number, because the mean of its divisors is an integer number (185055).

2⁴⁹³⁴⁷⁸ is an apocalyptic number.

493478 is a deficient number, since it is larger than the sum of its proper divisors (246742).

493478 is a wasteful number, since it uses less digits than its factorization.

493478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246741.

The product of its digits is 24192, while the sum is 35.

The square root of 493478 is about 702.4798929507. The cubic root of 493478 is about 79.0234401415.

The spelling of 493478 in words is "four hundred ninety-three thousand, four hundred seventy-eight".