27944427 has 16 divisors (see below), whose sum is σ = 43219712. Its totient is φ = 15729120.

The previous prime is 27944417. The next prime is 27944431. The reversal of 27944427 is 72444972.

It is not a de Polignac number, because 27944427 - 2⁶ = 27944363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27944407) 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, 8524 + ... + 11337.

It is an arithmetic number, because the mean of its divisors is an integer number (2701232).

Almost surely, 2^27944427 is an apocalyptic number.

27944427 is a deficient number, since it is larger than the sum of its proper divisors (15275285).

27944427 is a wasteful number, since it uses less digits than its factorization.

27944427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19938.

The product of its digits is 112896, while the sum is 39.

The square root of 27944427 is about 5286.2488590682. The cubic root of 27944427 is about 303.4578684662.

The spelling of 27944427 in words is "twenty-seven million, nine hundred forty-four thousand, four hundred twenty-seven".