494678 has 4 divisors (see below), whose sum is σ = 742020. Its totient is φ = 247338.

The previous prime is 494677. The next prime is 494687. The reversal of 494678 is 876494.

It is a happy number.

494678 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123668 + ... + 123671.

It is an arithmetic number, because the mean of its divisors is an integer number (185505).

2⁴⁹⁴⁶⁷⁸ is an apocalyptic number.

494678 is a deficient number, since it is larger than the sum of its proper divisors (247342).

494678 is a wasteful number, since it uses less digits than its factorization.

494678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247341.

The product of its digits is 48384, while the sum is 38.

The square root of 494678 is about 703.3334913112. Note that the first 3 decimals coincide. The cubic root of 494678 is about 79.0874425670.

The spelling of 494678 in words is "four hundred ninety-four thousand, six hundred seventy-eight".