26429261 has 2 divisors, whose sum is σ = 26429262. Its totient is φ = 26429260.

The previous prime is 26429239. The next prime is 26429279. The reversal of 26429261 is 16292462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19193161 + 7236100 = 4381^2 + 2690^2 .

It is a cyclic number.

It is not a de Polignac number, because 26429261 - 2¹⁸ = 26167117 is a prime.

It is a super-2 number, since 2×26429261² = 1397011674012242, 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 (26429281) 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, 13214630 + 13214631.

It is an arithmetic number, because the mean of its divisors is an integer number (13214631).

Almost surely, 2^26429261 is an apocalyptic number.

It is an amenable number.

26429261 is a deficient number, since it is larger than the sum of its proper divisors (1).

26429261 is an equidigital number, since it uses as much as digits as its factorization.

26429261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 26429261 is about 5140.9397000937. The cubic root of 26429261 is about 297.8710799195.

The spelling of 26429261 in words is "twenty-six million, four hundred twenty-nine thousand, two hundred sixty-one".