26419321 has 2 divisors, whose sum is σ = 26419322. Its totient is φ = 26419320.

The previous prime is 26419307. The next prime is 26419331. The reversal of 26419321 is 12391462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26409321 + 10000 = 5139^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 26419321 - 2⁷ = 26419193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26419321.

It is not a weakly prime, because it can be changed into another prime (26419301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13209660 + 13209661.

It is an arithmetic number, because the mean of its divisors is an integer number (13209661).

Almost surely, 2^26419321 is an apocalyptic number.

It is an amenable number.

26419321 is a deficient number, since it is larger than the sum of its proper divisors (1).

26419321 is an equidigital number, since it uses as much as digits as its factorization.

26419321 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 26419321 is about 5139.9728598505. The cubic root of 26419321 is about 297.8337323019.

The spelling of 26419321 in words is "twenty-six million, four hundred nineteen thousand, three hundred twenty-one".