26397097 has 2 divisors, whose sum is σ = 26397098. Its totient is φ = 26397096.

The previous prime is 26397083. The next prime is 26397101. The reversal of 26397097 is 79079362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16842816 + 9554281 = 4104^2 + 3091^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26397097 is a prime.

It is not a weakly prime, because it can be changed into another prime (26397017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13198548 + 13198549.

It is an arithmetic number, because the mean of its divisors is an integer number (13198549).

Almost surely, 2^26397097 is an apocalyptic number.

It is an amenable number.

26397097 is a deficient number, since it is larger than the sum of its proper divisors (1).

26397097 is an equidigital number, since it uses as much as digits as its factorization.

26397097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 26397097 is about 5137.8105258952. The cubic root of 26397097 is about 297.7501960429.

The spelling of 26397097 in words is "twenty-six million, three hundred ninety-seven thousand, ninety-seven".