26680984 has 48 divisors (see below), whose sum is σ = 56354760. Its totient is φ = 11827200.

The previous prime is 26680963. The next prime is 26680991. The reversal of 26680984 is 48908662.

It is a happy number.

26680984 is nontrivially palindromic in base 3.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 26680984.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 41304 + ... + 41944.

Almost surely, 2^26680984 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 26680984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28177380).

26680984 is an abundant number, since it is smaller than the sum of its proper divisors (29673776).

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

26680984 is a wasteful number, since it uses less digits than its factorization.

26680984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 26680984 is about 5165.3638787601. The cubic root of 26680984 is about 298.8137750089.

The spelling of 26680984 in words is "twenty-six million, six hundred eighty thousand, nine hundred eighty-four".