26198873 has 2 divisors, whose sum is σ = 26198874. Its totient is φ = 26198872.

The previous prime is 26198857. The next prime is 26198903. The reversal of 26198873 is 37889162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24631369 + 1567504 = 4963^2 + 1252^2 .

It is a cyclic number.

It is not a de Polignac number, because 26198873 - 2⁴ = 26198857 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 (26198573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13099436 + 13099437.

It is an arithmetic number, because the mean of its divisors is an integer number (13099437).

Almost surely, 2^26198873 is an apocalyptic number.

It is an amenable number.

26198873 is a deficient number, since it is larger than the sum of its proper divisors (1).

26198873 is an equidigital number, since it uses as much as digits as its factorization.

26198873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 26198873 is about 5118.4834668093. The cubic root of 26198873 is about 297.0030230923.

The spelling of 26198873 in words is "twenty-six million, one hundred ninety-eight thousand, eight hundred seventy-three".