266479 has 2 divisors, whose sum is σ = 266480. Its totient is φ = 266478.

The previous prime is 266477. The next prime is 266489. The reversal of 266479 is 974662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266479 - 2¹ = 266477 is a prime.

It is a super-2 number, since 2×266479² = 142022114882, which contains 22 as substring.

Together with 266477, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133239 + 133240.

It is an arithmetic number, because the mean of its divisors is an integer number (133240).

2²⁶⁶⁴⁷⁹ is an apocalyptic number.

266479 is a deficient number, since it is larger than the sum of its proper divisors (1).

266479 is an equidigital number, since it uses as much as digits as its factorization.

266479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 266479 is about 516.2160400453. The cubic root of 266479 is about 64.3508562491.

The spelling of 266479 in words is "two hundred sixty-six thousand, four hundred seventy-nine".