67279 has 4 divisors (see below), whose sum is σ = 70840. Its totient is φ = 63720.

The previous prime is 67273. The next prime is 67289. The reversal of 67279 is 97276.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 67279 - 2³ = 67271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1752 + ... + 1789.

It is an arithmetic number, because the mean of its divisors is an integer number (17710).

2⁶⁷²⁷⁹ is an apocalyptic number.

67279 is a deficient number, since it is larger than the sum of its proper divisors (3561).

67279 is a wasteful number, since it uses less digits than its factorization.

67279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560.

The product of its digits is 5292, while the sum is 31.

The square root of 67279 is about 259.3819577380. The cubic root of 67279 is about 40.6717796432.

The spelling of 67279 in words is "sixty-seven thousand, two hundred seventy-nine".