26742769 has 2 divisors, whose sum is σ = 26742770. Its totient is φ = 26742768.

The previous prime is 26742763. The next prime is 26742787. The reversal of 26742769 is 96724762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26368225 + 374544 = 5135^2 + 612^2 .

It is a cyclic number.

It is not a de Polignac number, because 26742769 - 2³ = 26742761 is a prime.

It is a super-2 number, since 2×26742769² = 1430351387574722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26742761) 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, 13371384 + 13371385.

It is an arithmetic number, because the mean of its divisors is an integer number (13371385).

Almost surely, 2^26742769 is an apocalyptic number.

It is an amenable number.

26742769 is a deficient number, since it is larger than the sum of its proper divisors (1).

26742769 is an equidigital number, since it uses as much as digits as its factorization.

26742769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 43.

The square root of 26742769 is about 5171.3411219915. The cubic root of 26742769 is about 299.0442509720.

The spelling of 26742769 in words is "twenty-six million, seven hundred forty-two thousand, seven hundred sixty-nine".