26997473 has 2 divisors, whose sum is σ = 26997474. Its totient is φ = 26997472.

The previous prime is 26997437. The next prime is 26997569. The reversal of 26997473 is 37479962.

Together with previous prime (26997437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15108769 + 11888704 = 3887^2 + 3448^2 .

It is a cyclic number.

It is not a de Polignac number, because 26997473 - 2¹⁰ = 26996449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (26997403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13498736 + 13498737.

It is an arithmetic number, because the mean of its divisors is an integer number (13498737).

Almost surely, 2^26997473 is an apocalyptic number.

It is an amenable number.

26997473 is a deficient number, since it is larger than the sum of its proper divisors (1).

26997473 is an equidigital number, since it uses as much as digits as its factorization.

26997473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 47.

The square root of 26997473 is about 5195.9092563285. The cubic root of 26997473 is about 299.9906404487.

The spelling of 26997473 in words is "twenty-six million, nine hundred ninety-seven thousand, four hundred seventy-three".