4678 has 4 divisors (see below), whose sum is σ = 7020. Its totient is φ = 2338.

The previous prime is 4673. The next prime is 4679. The reversal of 4678 is 8764.

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

It is a plaindrome in base 10, base 15 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4673) by changing a digit.

4678 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 (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1168 + ... + 1171.

It is an arithmetic number, because the mean of its divisors is an integer number (1755).

2⁴⁶⁷⁸ is an apocalyptic number.

4678 is a deficient number, since it is larger than the sum of its proper divisors (2342).

4678 is a wasteful number, since it uses less digits than its factorization.

4678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341.

The product of its digits is 1344, while the sum is 25.

The square root of 4678 is about 68.3959063102. The cubic root of 4678 is about 16.7245101269.

The spelling of 4678 in words is "four thousand, six hundred seventy-eight".