26959945 has 4 divisors (see below), whose sum is σ = 32351940. Its totient is φ = 21567952.

The previous prime is 26959927. The next prime is 26959949. The reversal of 26959945 is 54995962.

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 5992704 + 20967241 = 2448^2 + 4579^2 .

It is a cyclic number.

It is not a de Polignac number, because 26959945 - 2⁵ = 26959913 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (26959949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695990 + ... + 2695999.

It is an arithmetic number, because the mean of its divisors is an integer number (8087985).

Almost surely, 2^26959945 is an apocalyptic number.

It is an amenable number.

26959945 is a deficient number, since it is larger than the sum of its proper divisors (5391995).

26959945 is an equidigital number, since it uses as much as digits as its factorization.

26959945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5391994.

The product of its digits is 874800, while the sum is 49.

The square root of 26959945 is about 5192.2966979941. The cubic root of 26959945 is about 299.8515747267.

The spelling of 26959945 in words is "twenty-six million, nine hundred fifty-nine thousand, nine hundred forty-five".