26388413 has 2 divisors, whose sum is σ = 26388414. Its totient is φ = 26388412.

The previous prime is 26388407. The next prime is 26388421. The reversal of 26388413 is 31488362.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19695844 + 6692569 = 4438^2 + 2587^2 .

It is a cyclic number.

It is not a de Polignac number, because 26388413 - 2⁸ = 26388157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26388433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13194206 + 13194207.

It is an arithmetic number, because the mean of its divisors is an integer number (13194207).

Almost surely, 2^26388413 is an apocalyptic number.

It is an amenable number.

26388413 is a deficient number, since it is larger than the sum of its proper divisors (1).

26388413 is an equidigital number, since it uses as much as digits as its factorization.

26388413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 35.

The square root of 26388413 is about 5136.9653493089. The cubic root of 26388413 is about 297.7175416151.

The spelling of 26388413 in words is "twenty-six million, three hundred eighty-eight thousand, four hundred thirteen".