26785081 has 4 divisors (see below), whose sum is σ = 28360692. Its totient is φ = 25209472.

The previous prime is 26785061. The next prime is 26785091. The reversal of 26785081 is 18058762.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13213225 + 13571856 = 3635^2 + 3684^2 .

It is a cyclic number.

It is not a de Polignac number, because 26785081 - 2⁵ = 26785049 is a prime.

It is a super-2 number, since 2×26785081² = 1434881128353122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26785081.

It is not an unprimeable number, because it can be changed into a prime (26785021) 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, 787780 + ... + 787813.

It is an arithmetic number, because the mean of its divisors is an integer number (7090173).

Almost surely, 2^26785081 is an apocalyptic number.

It is an amenable number.

26785081 is a deficient number, since it is larger than the sum of its proper divisors (1575611).

26785081 is a wasteful number, since it uses less digits than its factorization.

26785081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575610.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 26785081 is about 5175.4305134935. The cubic root of 26785081 is about 299.2018822803.

The spelling of 26785081 in words is "twenty-six million, seven hundred eighty-five thousand, eighty-one".