26920171 has 2 divisors, whose sum is σ = 26920172. Its totient is φ = 26920170.

The previous prime is 26920151. The next prime is 26920177. The reversal of 26920171 is 17102962.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26920171 - 2¹³ = 26911979 is a prime.

It is not a weakly prime, because it can be changed into another prime (26920177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13460085 + 13460086.

It is an arithmetic number, because the mean of its divisors is an integer number (13460086).

Almost surely, 2^26920171 is an apocalyptic number.

26920171 is a deficient number, since it is larger than the sum of its proper divisors (1).

26920171 is an equidigital number, since it uses as much as digits as its factorization.

26920171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 26920171 is about 5188.4651873170. The cubic root of 26920171 is about 299.7040451688.

The spelling of 26920171 in words is "twenty-six million, nine hundred twenty thousand, one hundred seventy-one".