27706223 has 8 divisors (see below), whose sum is σ = 29149200. Its totient is φ = 26295808.

The previous prime is 27706187. The next prime is 27706241. The reversal of 27706223 is 32260772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27706223 - 2¹⁰ = 27705199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27706423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6386 + ... + 9807.

It is an arithmetic number, because the mean of its divisors is an integer number (3643650).

Almost surely, 2^27706223 is an apocalyptic number.

27706223 is a deficient number, since it is larger than the sum of its proper divisors (1442977).

27706223 is a wasteful number, since it uses less digits than its factorization.

27706223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16281.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 27706223 is about 5263.6701074440. The cubic root of 27706223 is about 302.5931612066.

Adding to 27706223 its reverse (32260772), we get a palindrome (59966995).

The spelling of 27706223 in words is "twenty-seven million, seven hundred six thousand, two hundred twenty-three".