26791291 has 2 divisors, whose sum is σ = 26791292. Its totient is φ = 26791290.

The previous prime is 26791253. The next prime is 26791301. The reversal of 26791291 is 19219762.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26791291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26791291.

It is not a weakly prime, because it can be changed into another prime (26791231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13395645 + 13395646.

It is an arithmetic number, because the mean of its divisors is an integer number (13395646).

Almost surely, 2^26791291 is an apocalyptic number.

26791291 is a deficient number, since it is larger than the sum of its proper divisors (1).

26791291 is an equidigital number, since it uses as much as digits as its factorization.

26791291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 37.

The square root of 26791291 is about 5176.0304288132. The cubic root of 26791291 is about 299.2250033617.

The spelling of 26791291 in words is "twenty-six million, seven hundred ninety-one thousand, two hundred ninety-one".