168478 has 4 divisors (see below), whose sum is σ = 252720. Its totient is φ = 84238.

The previous prime is 168463. The next prime is 168481. The reversal of 168478 is 874861.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

168478 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42118 + ... + 42121.

It is an arithmetic number, because the mean of its divisors is an integer number (63180).

2¹⁶⁸⁴⁷⁸ is an apocalyptic number.

168478 is a deficient number, since it is larger than the sum of its proper divisors (84242).

168478 is an equidigital number, since it uses as much as digits as its factorization.

168478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84241.

The product of its digits is 10752, while the sum is 34.

The square root of 168478 is about 410.4607167562. The cubic root of 168478 is about 55.2307659481.

It can be divided in two parts, 168 and 478, that added together give a palindrome (646).

The spelling of 168478 in words is "one hundred sixty-eight thousand, four hundred seventy-eight".