26438473 has 2 divisors, whose sum is σ = 26438474. Its totient is φ = 26438472.

The previous prime is 26438453. The next prime is 26438509. The reversal of 26438473 is 37483462.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14348944 + 12089529 = 3788^2 + 3477^2 .

It is a cyclic number.

It is not a de Polignac number, because 26438473 - 2⁵ = 26438441 is a prime.

It is not a weakly prime, because it can be changed into another prime (26438413) 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, 13219236 + 13219237.

It is an arithmetic number, because the mean of its divisors is an integer number (13219237).

Almost surely, 2^26438473 is an apocalyptic number.

It is an amenable number.

26438473 is a deficient number, since it is larger than the sum of its proper divisors (1).

26438473 is an equidigital number, since it uses as much as digits as its factorization.

26438473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 37.

The square root of 26438473 is about 5141.8355671880. The cubic root of 26438473 is about 297.9056838590.

It can be divided in two parts, 2643847 and 3, that added together give a triangular number (2643850 = T₂₂₉₉).

The spelling of 26438473 in words is "twenty-six million, four hundred thirty-eight thousand, four hundred seventy-three".