26641871 has 2 divisors, whose sum is σ = 26641872. Its totient is φ = 26641870.

The previous prime is 26641847. The next prime is 26641931. The reversal of 26641871 is 17814662.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26641871 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26641831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13320935 + 13320936.

It is an arithmetic number, because the mean of its divisors is an integer number (13320936).

Almost surely, 2^26641871 is an apocalyptic number.

26641871 is a deficient number, since it is larger than the sum of its proper divisors (1).

26641871 is an equidigital number, since it uses as much as digits as its factorization.

26641871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 26641871 is about 5161.5764064867. The cubic root of 26641871 is about 298.6676882062.

The spelling of 26641871 in words is "twenty-six million, six hundred forty-one thousand, eight hundred seventy-one".