27944001 has 16 divisors (see below), whose sum is σ = 42409920. Its totient is φ = 18174240.

The previous prime is 27943999. The next prime is 27944017. The reversal of 27944001 is 10044972.

It is a happy number.

It is not a de Polignac number, because 27944001 - 2¹ = 27943999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (27944071) 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, 11515 + ... + 13728.

It is an arithmetic number, because the mean of its divisors is an integer number (2650620).

Almost surely, 2^27944001 is an apocalyptic number.

It is an amenable number.

27944001 is a deficient number, since it is larger than the sum of its proper divisors (14465919).

27944001 is a wasteful number, since it uses less digits than its factorization.

27944001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25293 (or 25287 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 27944001 is about 5286.2085656924. The cubic root of 27944001 is about 303.4563264329.

Adding to 27944001 its reverse (10044972), we get a palindrome (37988973).

The spelling of 27944001 in words is "twenty-seven million, nine hundred forty-four thousand, one".