26934221 has 4 divisors (see below), whose sum is σ = 26959452. Its totient is φ = 26908992.

The previous prime is 26934203. The next prime is 26934223. The reversal of 26934221 is 12243962.

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 8185321 + 18748900 = 2861^2 + 4330^2 .

It is a cyclic number.

It is not a de Polignac number, because 26934221 - 2¹⁴ = 26917837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26934223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10940 + ... + 13173.

It is an arithmetic number, because the mean of its divisors is an integer number (6739863).

Almost surely, 2^26934221 is an apocalyptic number.

It is an amenable number.

26934221 is a deficient number, since it is larger than the sum of its proper divisors (25231).

26934221 is a wasteful number, since it uses less digits than its factorization.

26934221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25230.

The product of its digits is 5184, while the sum is 29.

The square root of 26934221 is about 5189.8189756484. The cubic root of 26934221 is about 299.7561759606.

The spelling of 26934221 in words is "twenty-six million, nine hundred thirty-four thousand, two hundred twenty-one".