26805685 has 8 divisors (see below), whose sum is σ = 34059096. Its totient is φ = 20183040.

The previous prime is 26805683. The next prime is 26805697. The reversal of 26805685 is 58650862.

It can be written as a sum of positive squares in 4 ways, for example, as 734449 + 26071236 = 857^2 + 5106^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26805685 - 2¹ = 26805683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26805683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157596 + ... + 157765.

It is an arithmetic number, because the mean of its divisors is an integer number (4257387).

Almost surely, 2^26805685 is an apocalyptic number.

It is an amenable number.

26805685 is a deficient number, since it is larger than the sum of its proper divisors (7253411).

26805685 is a wasteful number, since it uses less digits than its factorization.

26805685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315383.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 26805685 is about 5177.4206898802. The cubic root of 26805685 is about 299.2785813894.

The spelling of 26805685 in words is "twenty-six million, eight hundred five thousand, six hundred eighty-five".