67478 has 4 divisors (see below), whose sum is σ = 101220. Its totient is φ = 33738.

The previous prime is 67477. The next prime is 67481. The reversal of 67478 is 87476.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16868 + ... + 16871.

It is an arithmetic number, because the mean of its divisors is an integer number (25305).

2⁶⁷⁴⁷⁸ is an apocalyptic number.

67478 is a deficient number, since it is larger than the sum of its proper divisors (33742).

67478 is a wasteful number, since it uses less digits than its factorization.

67478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33741.

The product of its digits is 9408, while the sum is 32.

The square root of 67478 is about 259.7652786652. The cubic root of 67478 is about 40.7118402729.

It can be divided in two parts, 67 and 478, that added together give a palindrome (545).

The spelling of 67478 in words is "sixty-seven thousand, four hundred seventy-eight".