26947469 has 2 divisors, whose sum is σ = 26947470. Its totient is φ = 26947468.

The previous prime is 26947457. The next prime is 26947471. The reversal of 26947469 is 96474962.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17724100 + 9223369 = 4210^2 + 3037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26947469 is a prime.

It is a super-2 number, since 2×26947469² = 1452332171011922, which contains 22 as substring.

Together with 26947471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26947429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13473734 + 13473735.

It is an arithmetic number, because the mean of its divisors is an integer number (13473735).

Almost surely, 2^26947469 is an apocalyptic number.

It is an amenable number.

26947469 is a deficient number, since it is larger than the sum of its proper divisors (1).

26947469 is an equidigital number, since it uses as much as digits as its factorization.

26947469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The square root of 26947469 is about 5191.0951638359. The cubic root of 26947469 is about 299.8053144265.

The spelling of 26947469 in words is "twenty-six million, nine hundred forty-seven thousand, four hundred sixty-nine".