27224427 has 16 divisors (see below), whose sum is σ = 36976640. Its totient is φ = 17813952.

The previous prime is 27224413. The next prime is 27224437. The reversal of 27224427 is 72442272.

It is not a de Polignac number, because 27224427 - 2⁴ = 27224411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27224394 and 27224403.

It is not an unprimeable number, because it can be changed into a prime (27224437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73998 + ... + 74364.

It is an arithmetic number, because the mean of its divisors is an integer number (2311040).

Almost surely, 2^27224427 is an apocalyptic number.

27224427 is a deficient number, since it is larger than the sum of its proper divisors (9752213).

27224427 is a wasteful number, since it uses less digits than its factorization.

27224427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762.

The product of its digits is 12544, while the sum is 30.

The square root of 27224427 is about 5217.7032303495. The cubic root of 27224427 is about 300.8289186479.

Adding to 27224427 its reverse (72442272), we get a palindrome (99666699).

The spelling of 27224427 in words is "twenty-seven million, two hundred twenty-four thousand, four hundred twenty-seven".