26991296 has 14 divisors (see below), whose sum is σ = 53560980. Its totient is φ = 13495616.

The previous prime is 26991281. The next prime is 26991299. The reversal of 26991296 is 69219962.

It is not an unprimeable number, because it can be changed into a prime (26991299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210806 + ... + 210933.

Almost surely, 2^26991296 is an apocalyptic number.

It is an amenable number.

26991296 is a deficient number, since it is larger than the sum of its proper divisors (26569684).

26991296 is an equidigital number, since it uses as much as digits as its factorization.

26991296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421751 (or 421741 counting only the distinct ones).

The product of its digits is 104976, while the sum is 44.

The square root of 26991296 is about 5195.3148124055. The cubic root of 26991296 is about 299.9677594983.

The spelling of 26991296 in words is "twenty-six million, nine hundred ninety-one thousand, two hundred ninety-six".