26047811 has 4 divisors (see below), whose sum is σ = 26063592. Its totient is φ = 26032032.

The previous prime is 26047789. The next prime is 26047831. The reversal of 26047811 is 11874062.

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 26047811 - 2¹⁸ = 25785667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26047831) 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, 5081 + ... + 8826.

It is an arithmetic number, because the mean of its divisors is an integer number (6515898).

Almost surely, 2^26047811 is an apocalyptic number.

26047811 is a deficient number, since it is larger than the sum of its proper divisors (15781).

26047811 is a wasteful number, since it uses less digits than its factorization.

26047811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15780.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 26047811 is about 5103.7056145511. The cubic root of 26047811 is about 296.4310852616.

The spelling of 26047811 in words is "twenty-six million, forty-seven thousand, eight hundred eleven".