26318947 has 2 divisors, whose sum is σ = 26318948. Its totient is φ = 26318946.

The previous prime is 26318939. The next prime is 26318953. The reversal of 26318947 is 74981362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26318947 - 2³ = 26318939 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26318917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13159473 + 13159474.

It is an arithmetic number, because the mean of its divisors is an integer number (13159474).

Almost surely, 2^26318947 is an apocalyptic number.

26318947 is a deficient number, since it is larger than the sum of its proper divisors (1).

26318947 is an equidigital number, since it uses as much as digits as its factorization.

26318947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 26318947 is about 5130.1995087911. The cubic root of 26318947 is about 297.4560705326.

The spelling of 26318947 in words is "twenty-six million, three hundred eighteen thousand, nine hundred forty-seven".