26804069 has 2 divisors, whose sum is σ = 26804070. Its totient is φ = 26804068.

The previous prime is 26804059. The next prime is 26804083. The reversal of 26804069 is 96040862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26061025 + 743044 = 5105^2 + 862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26804069 is a prime.

It is a super-4 number, since 4×26804069⁴ (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26804059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13402034 + 13402035.

It is an arithmetic number, because the mean of its divisors is an integer number (13402035).

Almost surely, 2^26804069 is an apocalyptic number.

It is an amenable number.

26804069 is a deficient number, since it is larger than the sum of its proper divisors (1).

26804069 is an equidigital number, since it uses as much as digits as its factorization.

26804069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 26804069 is about 5177.2646252630. The cubic root of 26804069 is about 299.2725671937.

The spelling of 26804069 in words is "twenty-six million, eight hundred four thousand, sixty-nine".