26138873 has 2 divisors, whose sum is σ = 26138874. Its totient is φ = 26138872.

The previous prime is 26138867. The next prime is 26138887. The reversal of 26138873 is 37883162.

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., 22250089 + 3888784 = 4717^2 + 1972^2 .

It is a cyclic number.

It is not a de Polignac number, because 26138873 - 2¹⁰ = 26137849 is a prime.

It is not a weakly prime, because it can be changed into another prime (26138803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13069436 + 13069437.

It is an arithmetic number, because the mean of its divisors is an integer number (13069437).

Almost surely, 2^26138873 is an apocalyptic number.

It is an amenable number.

26138873 is a deficient number, since it is larger than the sum of its proper divisors (1).

26138873 is an equidigital number, since it uses as much as digits as its factorization.

26138873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 26138873 is about 5112.6189961702. The cubic root of 26138873 is about 296.7761201705.

The spelling of 26138873 in words is "twenty-six million, one hundred thirty-eight thousand, eight hundred seventy-three".