26975221 has 16 divisors (see below), whose sum is σ = 33360768. Its totient is φ = 21240000.

The previous prime is 26975219. The next prime is 26975281. The reversal of 26975221 is 12257962.

It is a cyclic number.

It is not a de Polignac number, because 26975221 - 2¹ = 26975219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26975281) 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 15 ways as a sum of consecutive naturals, for example, 22251 + ... + 23431.

It is an arithmetic number, because the mean of its divisors is an integer number (2085048).

Almost surely, 2^26975221 is an apocalyptic number.

It is an amenable number.

26975221 is a deficient number, since it is larger than the sum of its proper divisors (6385547).

26975221 is a wasteful number, since it uses less digits than its factorization.

26975221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452.

The product of its digits is 15120, while the sum is 34.

The square root of 26975221 is about 5193.7675150126. The cubic root of 26975221 is about 299.9081978367.

The spelling of 26975221 in words is "twenty-six million, nine hundred seventy-five thousand, two hundred twenty-one".