67654 has 4 divisors (see below), whose sum is σ = 101484. Its totient is φ = 33826.

The previous prime is 67651. The next prime is 67679. The reversal of 67654 is 45676.

67654 is nontrivially palindromic in base 13.

67654 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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 (67651) by changing a digit.

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, 16912 + ... + 16915.

It is an arithmetic number, because the mean of its divisors is an integer number (25371).

2⁶⁷⁶⁵⁴ is an apocalyptic number.

67654 is a deficient number, since it is larger than the sum of its proper divisors (33830).

67654 is a wasteful number, since it uses less digits than its factorization.

67654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33829.

The product of its digits is 5040, while the sum is 28.

The square root of 67654 is about 260.1038254236. The cubic root of 67654 is about 40.7472051981.

The spelling of 67654 in words is "sixty-seven thousand, six hundred fifty-four".