26680916 has 12 divisors (see below), whose sum is σ = 47331732. Its totient is φ = 13157568.

The previous prime is 26680891. The next prime is 26680919. The reversal of 26680916 is 61908662.

It can be written as a sum of positive squares in 2 ways, for example, as 22600516 + 4080400 = 4754^2 + 2020^2 .

It is a super-3 number, since 3×26680916³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26680916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26680919) 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, 45395 + ... + 45978.

It is an arithmetic number, because the mean of its divisors is an integer number (3944311).

Almost surely, 2^26680916 is an apocalyptic number.

It is an amenable number.

26680916 is a deficient number, since it is larger than the sum of its proper divisors (20650816).

26680916 is a wasteful number, since it uses less digits than its factorization.

26680916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91450 (or 91448 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 26680916 is about 5165.3572964510. The cubic root of 26680916 is about 298.8135211533.

The spelling of 26680916 in words is "twenty-six million, six hundred eighty thousand, nine hundred sixteen".