26761261 has 2 divisors, whose sum is σ = 26761262. Its totient is φ = 26761260.

The previous prime is 26761243. The next prime is 26761271. The reversal of 26761261 is 16216762.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21215236 + 5546025 = 4606^2 + 2355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26761261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26761211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13380630 + 13380631.

It is an arithmetic number, because the mean of its divisors is an integer number (13380631).

Almost surely, 2^26761261 is an apocalyptic number.

It is an amenable number.

26761261 is a deficient number, since it is larger than the sum of its proper divisors (1).

26761261 is an equidigital number, since it uses as much as digits as its factorization.

26761261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 26761261 is about 5173.1287438068. The cubic root of 26761261 is about 299.1131624620.

The spelling of 26761261 in words is "twenty-six million, seven hundred sixty-one thousand, two hundred sixty-one".