26276491 has 2 divisors, whose sum is σ = 26276492. Its totient is φ = 26276490.

The previous prime is 26276489. The next prime is 26276501. The reversal of 26276491 is 19467262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26276491 - 2¹ = 26276489 is a prime.

Together with 26276489, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 26276491.

It is not a weakly prime, because it can be changed into another prime (26276191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13138245 + 13138246.

It is an arithmetic number, because the mean of its divisors is an integer number (13138246).

Almost surely, 2^26276491 is an apocalyptic number.

26276491 is a deficient number, since it is larger than the sum of its proper divisors (1).

26276491 is an equidigital number, since it uses as much as digits as its factorization.

26276491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 26276491 is about 5126.0599879440. The cubic root of 26276491 is about 297.2960389064.

The spelling of 26276491 in words is "twenty-six million, two hundred seventy-six thousand, four hundred ninety-one".