26944669 has 2 divisors, whose sum is σ = 26944670. Its totient is φ = 26944668.

The previous prime is 26944649. The next prime is 26944681. The reversal of 26944669 is 96644962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19316025 + 7628644 = 4395^2 + 2762^2 .

It is a cyclic number.

It is not a de Polignac number, because 26944669 - 2⁹ = 26944157 is a prime.

It is a super-2 number, since 2×26944669² = 1452030375039122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26944639) 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, 13472334 + 13472335.

It is an arithmetic number, because the mean of its divisors is an integer number (13472335).

Almost surely, 2^26944669 is an apocalyptic number.

It is an amenable number.

26944669 is a deficient number, since it is larger than the sum of its proper divisors (1).

26944669 is an equidigital number, since it uses as much as digits as its factorization.

26944669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 46.

The square root of 26944669 is about 5190.8254642205. The cubic root of 26944669 is about 299.7949302236.

The spelling of 26944669 in words is "twenty-six million, nine hundred forty-four thousand, six hundred sixty-nine".