26808697 has 2 divisors, whose sum is σ = 26808698. Its totient is φ = 26808696.

The previous prime is 26808671. The next prime is 26808709. The reversal of 26808697 is 79680862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17438976 + 9369721 = 4176^2 + 3061^2 .

It is a cyclic number.

It is not a de Polignac number, because 26808697 - 2¹¹ = 26806649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26808637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13404348 + 13404349.

It is an arithmetic number, because the mean of its divisors is an integer number (13404349).

Almost surely, 2^26808697 is an apocalyptic number.

It is an amenable number.

26808697 is a deficient number, since it is larger than the sum of its proper divisors (1).

26808697 is an equidigital number, since it uses as much as digits as its factorization.

26808697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 26808697 is about 5177.7115601393. The cubic root of 26808697 is about 299.2897903714.

The spelling of 26808697 in words is "twenty-six million, eight hundred eight thousand, six hundred ninety-seven".