26799197 has 2 divisors, whose sum is σ = 26799198. Its totient is φ = 26799196.

The previous prime is 26799187. The next prime is 26799203. The reversal of 26799197 is 79199762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22714756 + 4084441 = 4766^2 + 2021^2 .

It is a cyclic number.

It is not a de Polignac number, because 26799197 - 2¹⁶ = 26733661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26799107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13399598 + 13399599.

It is an arithmetic number, because the mean of its divisors is an integer number (13399599).

Almost surely, 2^26799197 is an apocalyptic number.

It is an amenable number.

26799197 is a deficient number, since it is larger than the sum of its proper divisors (1).

26799197 is an equidigital number, since it uses as much as digits as its factorization.

26799197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 428652, while the sum is 50.

The square root of 26799197 is about 5176.7940851457. The cubic root of 26799197 is about 299.2544338237.

The spelling of 26799197 in words is "twenty-six million, seven hundred ninety-nine thousand, one hundred ninety-seven".