267389 has 2 divisors, whose sum is σ = 267390. Its totient is φ = 267388.

The previous prime is 267373. The next prime is 267391. The reversal of 267389 is 983762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267289 + 100 = 517^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 267389 - 2⁴ = 267373 is a prime.

Together with 267391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261389) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133694 + 133695.

It is an arithmetic number, because the mean of its divisors is an integer number (133695).

2²⁶⁷³⁸⁹ is an apocalyptic number.

It is an amenable number.

267389 is a deficient number, since it is larger than the sum of its proper divisors (1).

267389 is an equidigital number, since it uses as much as digits as its factorization.

267389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 267389 is about 517.0967027549. The cubic root of 267389 is about 64.4240236748.

It can be divided in two parts, 267 and 389, that added together give a palindrome (656).

The spelling of 267389 in words is "two hundred sixty-seven thousand, three hundred eighty-nine".