67291 has 4 divisors (see below), whose sum is σ = 76912. Its totient is φ = 57672.

The previous prime is 67289. The next prime is 67307. The reversal of 67291 is 19276.

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 67291 - 2¹ = 67289 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (67211) 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, 4800 + ... + 4813.

It is an arithmetic number, because the mean of its divisors is an integer number (19228).

2⁶⁷²⁹¹ is an apocalyptic number.

67291 is a deficient number, since it is larger than the sum of its proper divisors (9621).

67291 is an equidigital number, since it uses as much as digits as its factorization.

67291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9620.

The product of its digits is 756, while the sum is 25.

The square root of 67291 is about 259.4050886162. The cubic root of 67291 is about 40.6741975960.

The spelling of 67291 in words is "sixty-seven thousand, two hundred ninety-one".