67679 has 2 divisors, whose sum is σ = 67680. Its totient is φ = 67678.

The previous prime is 67651. The next prime is 67699. The reversal of 67679 is 97676.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67679 - 2¹⁶ = 2143 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33839 + 33840.

It is an arithmetic number, because the mean of its divisors is an integer number (33840).

2⁶⁷⁶⁷⁹ is an apocalyptic number.

67679 is a deficient number, since it is larger than the sum of its proper divisors (1).

67679 is an equidigital number, since it uses as much as digits as its factorization.

67679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876, while the sum is 35.

The square root of 67679 is about 260.1518787170. The cubic root of 67679 is about 40.7522236482.

It can be divided in two parts, 6767 and 9, that added together give a palindrome (6776).

The spelling of 67679 in words is "sixty-seven thousand, six hundred seventy-nine".