26660671 has 2 divisors, whose sum is σ = 26660672. Its totient is φ = 26660670.

The previous prime is 26660653. The next prime is 26660677. The reversal of 26660671 is 17606662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26660671 - 2⁵ = 26660639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26660677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13330335 + 13330336.

It is an arithmetic number, because the mean of its divisors is an integer number (13330336).

Almost surely, 2^26660671 is an apocalyptic number.

26660671 is a deficient number, since it is larger than the sum of its proper divisors (1).

26660671 is an equidigital number, since it uses as much as digits as its factorization.

26660671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 26660671 is about 5163.3972343797. The cubic root of 26660671 is about 298.7379239180.

The spelling of 26660671 in words is "twenty-six million, six hundred sixty thousand, six hundred seventy-one".