26921712 has 20 divisors (see below), whose sum is σ = 69547880. Its totient is φ = 8973888.

The previous prime is 26921711. The next prime is 26921717. The reversal of 26921712 is 21712962.

It is a self number, because there is not a number n which added to its sum of digits gives 26921712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26921711) 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, 280387 + ... + 280482.

It is an arithmetic number, because the mean of its divisors is an integer number (3477394).

Almost surely, 2^26921712 is an apocalyptic number.

It is an amenable number.

26921712 is an abundant number, since it is smaller than the sum of its proper divisors (42626168).

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

26921712 is a wasteful number, since it uses less digits than its factorization.

26921712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560880 (or 560874 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 26921712 is about 5188.6136876819. The cubic root of 26921712 is about 299.7097637447.

The spelling of 26921712 in words is "twenty-six million, nine hundred twenty-one thousand, seven hundred twelve".