26231329 has 2 divisors, whose sum is σ = 26231330. Its totient is φ = 26231328.

The previous prime is 26231327. The next prime is 26231369. The reversal of 26231329 is 92313262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24206400 + 2024929 = 4920^2 + 1423^2 .

It is a cyclic number.

It is not a de Polignac number, because 26231329 - 2¹ = 26231327 is a prime.

It is a super-2 number, since 2×26231329² = 1376165242212482, which contains 22 as substring.

Together with 26231327, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 26231297 and 26231306.

It is not a weakly prime, because it can be changed into another prime (26231327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13115664 + 13115665.

It is an arithmetic number, because the mean of its divisors is an integer number (13115665).

Almost surely, 2^26231329 is an apocalyptic number.

It is an amenable number.

26231329 is a deficient number, since it is larger than the sum of its proper divisors (1).

26231329 is an equidigital number, since it uses as much as digits as its factorization.

26231329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 26231329 is about 5121.6529558337. The cubic root of 26231329 is about 297.1256180893.

The spelling of 26231329 in words is "twenty-six million, two hundred thirty-one thousand, three hundred twenty-nine".