26950813 has 2 divisors, whose sum is σ = 26950814. Its totient is φ = 26950812.

The previous prime is 26950801. The next prime is 26950823. The reversal of 26950813 is 31805962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26811684 + 139129 = 5178^2 + 373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26950813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26950823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13475406 + 13475407.

It is an arithmetic number, because the mean of its divisors is an integer number (13475407).

Almost surely, 2^26950813 is an apocalyptic number.

It is an amenable number.

26950813 is a deficient number, since it is larger than the sum of its proper divisors (1).

26950813 is an equidigital number, since it uses as much as digits as its factorization.

26950813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 26950813 is about 5191.4172438747. The cubic root of 26950813 is about 299.8177151892.

The spelling of 26950813 in words is "twenty-six million, nine hundred fifty thousand, eight hundred thirteen".