26766401 has 2 divisors, whose sum is σ = 26766402. Its totient is φ = 26766400.

The previous prime is 26766343. The next prime is 26766413. The reversal of 26766401 is 10466762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16008001 + 10758400 = 4001^2 + 3280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26766401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26766451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13383200 + 13383201.

It is an arithmetic number, because the mean of its divisors is an integer number (13383201).

Almost surely, 2^26766401 is an apocalyptic number.

It is an amenable number.

26766401 is a deficient number, since it is larger than the sum of its proper divisors (1).

26766401 is an equidigital number, since it uses as much as digits as its factorization.

26766401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 26766401 is about 5173.6255179516. The cubic root of 26766401 is about 299.1323113259.

The spelling of 26766401 in words is "twenty-six million, seven hundred sixty-six thousand, four hundred one".