26993089 has 2 divisors, whose sum is σ = 26993090. Its totient is φ = 26993088.

The previous prime is 26993081. The next prime is 26993111. The reversal of 26993089 is 98039962.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26863489 + 129600 = 5183^2 + 360^2 .

It is a cyclic number.

It is not a de Polignac number, because 26993089 - 2³ = 26993081 is a prime.

It is not a weakly prime, because it can be changed into another prime (26993081) 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, 13496544 + 13496545.

It is an arithmetic number, because the mean of its divisors is an integer number (13496545).

Almost surely, 2^26993089 is an apocalyptic number.

It is an amenable number.

26993089 is a deficient number, since it is larger than the sum of its proper divisors (1).

26993089 is an equidigital number, since it uses as much as digits as its factorization.

26993089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 26993089 is about 5195.4873688616. The cubic root of 26993089 is about 299.9744015195.

The spelling of 26993089 in words is "twenty-six million, nine hundred ninety-three thousand, eighty-nine".