26194321 has 2 divisors, whose sum is σ = 26194322. Its totient is φ = 26194320.

The previous prime is 26194319. The next prime is 26194327. The reversal of 26194321 is 12349162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17313921 + 8880400 = 4161^2 + 2980^2 .

It is a cyclic number.

It is not a de Polignac number, because 26194321 - 2¹ = 26194319 is a prime.

It is a super-2 number, since 2×26194321² = 1372284905302082, which contains 22 as substring.

Together with 26194319, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 26194321.

It is not a weakly prime, because it can be changed into another prime (26194327) 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, 13097160 + 13097161.

It is an arithmetic number, because the mean of its divisors is an integer number (13097161).

Almost surely, 2^26194321 is an apocalyptic number.

It is an amenable number.

26194321 is a deficient number, since it is larger than the sum of its proper divisors (1).

26194321 is an equidigital number, since it uses as much as digits as its factorization.

26194321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 26194321 is about 5118.0387845346. The cubic root of 26194321 is about 296.9858208757.

The spelling of 26194321 in words is "twenty-six million, one hundred ninety-four thousand, three hundred twenty-one".