26968979 has 2 divisors, whose sum is σ = 26968980. Its totient is φ = 26968978.

The previous prime is 26968973. The next prime is 26968993. The reversal of 26968979 is 97986962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26968979 - 2²⁴ = 10191763 is a prime.

It is not a weakly prime, because it can be changed into another prime (26968973) 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, 13484489 + 13484490.

It is an arithmetic number, because the mean of its divisors is an integer number (13484490).

Almost surely, 2^26968979 is an apocalyptic number.

26968979 is a deficient number, since it is larger than the sum of its proper divisors (1).

26968979 is an equidigital number, since it uses as much as digits as its factorization.

26968979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 56.

The square root of 26968979 is about 5193.1665677118. The cubic root of 26968979 is about 299.8850633783.

The spelling of 26968979 in words is "twenty-six million, nine hundred sixty-eight thousand, nine hundred seventy-nine".