26006663 has 2 divisors, whose sum is σ = 26006664. Its totient is φ = 26006662.

The previous prime is 26006647. The next prime is 26006677. The reversal of 26006663 is 36660062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26006663 - 2⁴ = 26006647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26006683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13003331 + 13003332.

It is an arithmetic number, because the mean of its divisors is an integer number (13003332).

Almost surely, 2^26006663 is an apocalyptic number.

26006663 is a deficient number, since it is larger than the sum of its proper divisors (1).

26006663 is an equidigital number, since it uses as much as digits as its factorization.

26006663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 26006663 is about 5099.6728326433. The cubic root of 26006663 is about 296.2749112322.

The spelling of 26006663 in words is "twenty-six million, six thousand, six hundred sixty-three".