26729641 has 2 divisors, whose sum is σ = 26729642. Its totient is φ = 26729640.

The previous prime is 26729629. The next prime is 26729683. The reversal of 26729641 is 14692762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25050025 + 1679616 = 5005^2 + 1296^2 .

It is a cyclic number.

It is not a de Polignac number, because 26729641 - 2¹¹ = 26727593 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26729641.

It is not a weakly prime, because it can be changed into another prime (26729141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13364820 + 13364821.

It is an arithmetic number, because the mean of its divisors is an integer number (13364821).

Almost surely, 2^26729641 is an apocalyptic number.

It is an amenable number.

26729641 is a deficient number, since it is larger than the sum of its proper divisors (1).

26729641 is an equidigital number, since it uses as much as digits as its factorization.

26729641 is an odious number, because the sum of its binary digits is odd.

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

The square root of 26729641 is about 5170.0716629463. The cubic root of 26729641 is about 298.9953094494.

The spelling of 26729641 in words is "twenty-six million, seven hundred twenty-nine thousand, six hundred forty-one".