26874865 has 4 divisors (see below), whose sum is σ = 32249844. Its totient is φ = 21499888.

The previous prime is 26874857. The next prime is 26874889. The reversal of 26874865 is 56847862.

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 21095649 + 5779216 = 4593^2 + 2404^2 .

It is a cyclic number.

It is not a de Polignac number, because 26874865 - 2³ = 26874857 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 2687482 + ... + 2687491.

It is an arithmetic number, because the mean of its divisors is an integer number (8062461).

Almost surely, 2^26874865 is an apocalyptic number.

It is an amenable number.

26874865 is a deficient number, since it is larger than the sum of its proper divisors (5374979).

26874865 is an equidigital number, since it uses as much as digits as its factorization.

26874865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374978.

The product of its digits is 645120, while the sum is 46.

The square root of 26874865 is about 5184.0973177594. The cubic root of 26874865 is about 299.5358191947.

The spelling of 26874865 in words is "twenty-six million, eight hundred seventy-four thousand, eight hundred sixty-five".