26779 has 4 divisors (see below), whose sum is σ = 27280. Its totient is φ = 26280.

The previous prime is 26777. The next prime is 26783. The reversal of 26779 is 97762.

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 26779 - 2¹ = 26777 is a prime.

It is a super-2 number, since 2×26779² = 1434229682, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10 and base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 26779.

It is not an unprimeable number, because it can be changed into a prime (26777) 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, 159 + ... + 280.

It is an arithmetic number, because the mean of its divisors is an integer number (6820).

2²⁶⁷⁷⁹ is an apocalyptic number.

26779 is a deficient number, since it is larger than the sum of its proper divisors (501).

26779 is an equidigital number, since it uses as much as digits as its factorization.

26779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500.

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

The square root of 26779 is about 163.6429039097. The cubic root of 26779 is about 29.9179238029.

The spelling of 26779 in words is "twenty-six thousand, seven hundred seventy-nine".