26966431 has 2 divisors, whose sum is σ = 26966432. Its totient is φ = 26966430.

The previous prime is 26966393. The next prime is 26966441. The reversal of 26966431 is 13466962.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26966431 - 2⁹ = 26965919 is a prime.

It is a super-2 number, since 2×26966431² = 1454376801755522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26966441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13483215 + 13483216.

It is an arithmetic number, because the mean of its divisors is an integer number (13483216).

Almost surely, 2^26966431 is an apocalyptic number.

26966431 is a deficient number, since it is larger than the sum of its proper divisors (1).

26966431 is an equidigital number, since it uses as much as digits as its factorization.

26966431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 37.

The square root of 26966431 is about 5192.9212395337. The cubic root of 26966431 is about 299.8756188086.

The spelling of 26966431 in words is "twenty-six million, nine hundred sixty-six thousand, four hundred thirty-one".