27223969 has 4 divisors (see below), whose sum is σ = 27262144. Its totient is φ = 27185796.

The previous prime is 27223967. The next prime is 27223981. The reversal of 27223969 is 96932272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27223969 - 2¹ = 27223967 is a prime.

It is a super-2 number, since 2×27223969² = 1482288976225922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27223961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17997 + ... + 19450.

It is an arithmetic number, because the mean of its divisors is an integer number (6815536).

Almost surely, 2^27223969 is an apocalyptic number.

It is an amenable number.

27223969 is a deficient number, since it is larger than the sum of its proper divisors (38175).

27223969 is an equidigital number, since it uses as much as digits as its factorization.

27223969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38174.

The product of its digits is 81648, while the sum is 40.

The square root of 27223969 is about 5217.6593411222. The cubic root of 27223969 is about 300.8272316774.

The spelling of 27223969 in words is "twenty-seven million, two hundred twenty-three thousand, nine hundred sixty-nine".