26391383 has 2 divisors, whose sum is σ = 26391384. Its totient is φ = 26391382.

The previous prime is 26391371. The next prime is 26391433. The reversal of 26391383 is 38319362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26391383 - 2¹⁸ = 26129239 is a prime.

It is a Sophie Germain prime.

It is equal to p_1647386 and since 26391383 and 1647386 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26391353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13195691 + 13195692.

It is an arithmetic number, because the mean of its divisors is an integer number (13195692).

Almost surely, 2^26391383 is an apocalyptic number.

26391383 is a deficient number, since it is larger than the sum of its proper divisors (1).

26391383 is an equidigital number, since it uses as much as digits as its factorization.

26391383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 35.

The square root of 26391383 is about 5137.2544223544. The cubic root of 26391383 is about 297.7287105061.

The spelling of 26391383 in words is "twenty-six million, three hundred ninety-one thousand, three hundred eighty-three".