26758939 has 2 divisors, whose sum is σ = 26758940. Its totient is φ = 26758938.

The previous prime is 26758903. The next prime is 26758993. The reversal of 26758939 is 93985762.

Together with next prime (26758993) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26758939 - 2¹³ = 26750747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26758892 and 26758901.

It is not a weakly prime, because it can be changed into another prime (26758999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13379469 + 13379470.

It is an arithmetic number, because the mean of its divisors is an integer number (13379470).

Almost surely, 2^26758939 is an apocalyptic number.

26758939 is a deficient number, since it is larger than the sum of its proper divisors (1).

26758939 is an equidigital number, since it uses as much as digits as its factorization.

26758939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 26758939 is about 5172.9043099597. The cubic root of 26758939 is about 299.1045111401.

The spelling of 26758939 in words is "twenty-six million, seven hundred fifty-eight thousand, nine hundred thirty-nine".