26272891 has 2 divisors, whose sum is σ = 26272892. Its totient is φ = 26272890.

The previous prime is 26272867. The next prime is 26272913. The reversal of 26272891 is 19827262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26272891 - 2¹³ = 26264699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26272891.

It is not a weakly prime, because it can be changed into another prime (26272861) 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 as a sum of consecutive naturals, namely, 13136445 + 13136446.

It is an arithmetic number, because the mean of its divisors is an integer number (13136446).

Almost surely, 2^26272891 is an apocalyptic number.

26272891 is a deficient number, since it is larger than the sum of its proper divisors (1).

26272891 is an equidigital number, since it uses as much as digits as its factorization.

26272891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 26272891 is about 5125.7088290304. The cubic root of 26272891 is about 297.2824613118.

It can be divided in two parts, 262 and 72891, that added together give a triangular number (73153 = T₃₈₂).

The spelling of 26272891 in words is "twenty-six million, two hundred seventy-two thousand, eight hundred ninety-one".