26289969 has 8 divisors (see below), whose sum is σ = 35115360. Its totient is φ = 17495616.

The previous prime is 26289947. The next prime is 26289971. The reversal of 26289969 is 96998262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-26289969 is a prime.

It is a super-2 number, since 2×26289969² = 1382324940041922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26289919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5704 + ... + 9225.

It is an arithmetic number, because the mean of its divisors is an integer number (4389420).

Almost surely, 2^26289969 is an apocalyptic number.

It is an amenable number.

26289969 is a deficient number, since it is larger than the sum of its proper divisors (8825391).

26289969 is a wasteful number, since it uses less digits than its factorization.

26289969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15519.

The product of its digits is 839808, while the sum is 51.

The square root of 26289969 is about 5127.3744743289. The cubic root of 26289969 is about 297.3468609017.

The spelling of 26289969 in words is "twenty-six million, two hundred eighty-nine thousand, nine hundred sixty-nine".