26985656 has 16 divisors (see below), whose sum is σ = 51456600. Its totient is φ = 13263904.

The previous prime is 26985619. The next prime is 26985659. The reversal of 26985656 is 65658962.

It is a self number, because there is not a number n which added to its sum of digits gives 26985656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26985659) 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 in 3 ways as a sum of consecutive naturals, for example, 28115 + ... + 29058.

Almost surely, 2^26985656 is an apocalyptic number.

It is an amenable number.

26985656 is a deficient number, since it is larger than the sum of its proper divisors (24470944).

26985656 is a wasteful number, since it uses less digits than its factorization.

26985656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57238 (or 57234 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The square root of 26985656 is about 5194.7719872965. The cubic root of 26985656 is about 299.9468646634.

The spelling of 26985656 in words is "twenty-six million, nine hundred eighty-five thousand, six hundred fifty-six".