26042197 has 2 divisors, whose sum is σ = 26042198. Its totient is φ = 26042196.

The previous prime is 26042153. The next prime is 26042213. The reversal of 26042197 is 79124062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20848356 + 5193841 = 4566^2 + 2279^2 .

It is a cyclic number.

It is not a de Polignac number, because 26042197 - 2¹⁹ = 25517909 is a 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 (26042897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13021098 + 13021099.

It is an arithmetic number, because the mean of its divisors is an integer number (13021099).

Almost surely, 2^26042197 is an apocalyptic number.

It is an amenable number.

26042197 is a deficient number, since it is larger than the sum of its proper divisors (1).

26042197 is an equidigital number, since it uses as much as digits as its factorization.

26042197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 26042197 is about 5103.1555923762. The cubic root of 26042197 is about 296.4097874555.

The spelling of 26042197 in words is "twenty-six million, forty-two thousand, one hundred ninety-seven".