26041993 has 2 divisors, whose sum is σ = 26041994. Its totient is φ = 26041992.

The previous prime is 26041991. The next prime is 26042017. The reversal of 26041993 is 39914062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23309584 + 2732409 = 4828^2 + 1653^2 .

It is a cyclic number.

It is not a de Polignac number, because 26041993 - 2¹ = 26041991 is a prime.

Together with 26041991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26041991) 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, 13020996 + 13020997.

It is an arithmetic number, because the mean of its divisors is an integer number (13020997).

Almost surely, 2^26041993 is an apocalyptic number.

It is an amenable number.

26041993 is a deficient number, since it is larger than the sum of its proper divisors (1).

26041993 is an equidigital number, since it uses as much as digits as its factorization.

26041993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 26041993 is about 5103.1356047042. The cubic root of 26041993 is about 296.4090134840.

The spelling of 26041993 in words is "twenty-six million, forty-one thousand, nine hundred ninety-three".