26726993 has 2 divisors, whose sum is σ = 26726994. Its totient is φ = 26726992.

The previous prime is 26726983. The next prime is 26727007. The reversal of 26726993 is 39962762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26708224 + 18769 = 5168^2 + 137^2 .

It is a cyclic number.

It is not a de Polignac number, because 26726993 - 2¹² = 26722897 is a prime.

It is not a weakly prime, because it can be changed into another prime (26726963) 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, 13363496 + 13363497.

It is an arithmetic number, because the mean of its divisors is an integer number (13363497).

Almost surely, 2^26726993 is an apocalyptic number.

It is an amenable number.

26726993 is a deficient number, since it is larger than the sum of its proper divisors (1).

26726993 is an equidigital number, since it uses as much as digits as its factorization.

26726993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 44.

The square root of 26726993 is about 5169.8155673099. The cubic root of 26726993 is about 298.9854356951.

The spelling of 26726993 in words is "twenty-six million, seven hundred twenty-six thousand, nine hundred ninety-three".