26738669 has 2 divisors, whose sum is σ = 26738670. Its totient is φ = 26738668.

The previous prime is 26738653. The next prime is 26738687. The reversal of 26738669 is 96683762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25381444 + 1357225 = 5038^2 + 1165^2 .

It is a cyclic number.

It is not a de Polignac number, because 26738669 - 2⁴ = 26738653 is a prime.

It is a super-2 number, since 2×26738669² = 1429912839783122, 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 (26731669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13369334 + 13369335.

It is an arithmetic number, because the mean of its divisors is an integer number (13369335).

Almost surely, 2^26738669 is an apocalyptic number.

It is an amenable number.

26738669 is a deficient number, since it is larger than the sum of its proper divisors (1).

26738669 is an equidigital number, since it uses as much as digits as its factorization.

26738669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 47.

The square root of 26738669 is about 5170.9446912532. The cubic root of 26738669 is about 299.0289677866.

The spelling of 26738669 in words is "twenty-six million, seven hundred thirty-eight thousand, six hundred sixty-nine".