26914781 has 2 divisors, whose sum is σ = 26914782. Its totient is φ = 26914780.

The previous prime is 26914777. The next prime is 26914787. The reversal of 26914781 is 18741962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23921881 + 2992900 = 4891^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 26914781 - 2² = 26914777 is a prime.

It is a super-2 number, since 2×26914781² = 1448810872555922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26914787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13457390 + 13457391.

It is an arithmetic number, because the mean of its divisors is an integer number (13457391).

Almost surely, 2^26914781 is an apocalyptic number.

It is an amenable number.

26914781 is a deficient number, since it is larger than the sum of its proper divisors (1).

26914781 is an equidigital number, since it uses as much as digits as its factorization.

26914781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 26914781 is about 5187.9457398859. The cubic root of 26914781 is about 299.6840414248.

The spelling of 26914781 in words is "twenty-six million, nine hundred fourteen thousand, seven hundred eighty-one".