26805223 has 4 divisors (see below), whose sum is σ = 26907408. Its totient is φ = 26703040.

The previous prime is 26805221. The next prime is 26805239. The reversal of 26805223 is 32250862.

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 26805223 - 2¹ = 26805221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26805191 and 26805200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26805221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50698 + ... + 51223.

It is an arithmetic number, because the mean of its divisors is an integer number (6726852).

Almost surely, 2^26805223 is an apocalyptic number.

26805223 is a deficient number, since it is larger than the sum of its proper divisors (102185).

26805223 is a wasteful number, since it uses less digits than its factorization.

26805223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102184.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 26805223 is about 5177.3760728771. The cubic root of 26805223 is about 299.2768620091.

It can be divided in two parts, 26805 and 223, that added together give a triangular number (27028 = T₂₃₂).

The spelling of 26805223 in words is "twenty-six million, eight hundred five thousand, two hundred twenty-three".