26800001 has 4 divisors (see below), whose sum is σ = 26812500. Its totient is φ = 26787504.

The previous prime is 26799989. The next prime is 26800009. The reversal of 26800001 is 10000862.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3519376 + 23280625 = 1876^2 + 4825^2 .

It is a cyclic number.

It is not a de Polignac number, because 26800001 - 2¹⁸ = 26537857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26800009) 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, 2126 + ... + 7623.

It is an arithmetic number, because the mean of its divisors is an integer number (6703125).

Almost surely, 2^26800001 is an apocalyptic number.

It is an amenable number.

26800001 is a deficient number, since it is larger than the sum of its proper divisors (12499).

26800001 is an equidigital number, since it uses as much as digits as its factorization.

26800001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12498.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 26800001 is about 5176.8717388013. The cubic root of 26800001 is about 299.2574264278.

Adding to 26800001 its reverse (10000862), we get a palindrome (36800863).

The spelling of 26800001 in words is "twenty-six million, eight hundred thousand, one".