26685677 has 2 divisors, whose sum is σ = 26685678. Its totient is φ = 26685676.

The previous prime is 26685653. The next prime is 26685679. The reversal of 26685677 is 77658662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25542916 + 1142761 = 5054^2 + 1069^2 .

It is a cyclic number.

It is not a de Polignac number, because 26685677 - 2¹² = 26681581 is a prime.

Together with 26685679, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26685679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13342838 + 13342839.

It is an arithmetic number, because the mean of its divisors is an integer number (13342839).

Almost surely, 2^26685677 is an apocalyptic number.

It is an amenable number.

26685677 is a deficient number, since it is larger than the sum of its proper divisors (1).

26685677 is an equidigital number, since it uses as much as digits as its factorization.

26685677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The square root of 26685677 is about 5165.8181346230. The cubic root of 26685677 is about 298.8312937386.

The spelling of 26685677 in words is "twenty-six million, six hundred eighty-five thousand, six hundred seventy-seven".