26889664 has 28 divisors (see below), whose sum is σ = 53547264. Its totient is φ = 13397504.

The previous prime is 26889649. The next prime is 26889677. The reversal of 26889664 is 46698862.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 23964 + ... + 25060.

Almost surely, 2^26889664 is an apocalyptic number.

It is an amenable number.

26889664 is a deficient number, since it is larger than the sum of its proper divisors (26657600).

26889664 is a wasteful number, since it uses less digits than its factorization.

26889664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492 (or 1482 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The square root of 26889664 is about 5185.5244672068. The cubic root of 26889664 is about 299.5907902265.

The spelling of 26889664 in words is "twenty-six million, eight hundred eighty-nine thousand, six hundred sixty-four".