26986656 has 48 divisors (see below), whose sum is σ = 71517600. Its totient is φ = 8909568.

The previous prime is 26986649. The next prime is 26986657. The reversal of 26986656 is 65668962.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (26986657) 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, 9175 + ... + 11753.

It is an arithmetic number, because the mean of its divisors is an integer number (1489950).

Almost surely, 2^26986656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26986656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35758800).

26986656 is an abundant number, since it is smaller than the sum of its proper divisors (44530944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26986656 is a wasteful number, since it uses less digits than its factorization.

26986656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701 (or 2693 counting only the distinct ones).

The product of its digits is 933120, while the sum is 48.

The square root of 26986656 is about 5194.8682370201. The cubic root of 26986656 is about 299.9505696337.

The spelling of 26986656 in words is "twenty-six million, nine hundred eighty-six thousand, six hundred fifty-six".