27197944 has 16 divisors (see below), whose sum is σ = 51145920. Its totient is φ = 13559040.

The previous prime is 27197941. The next prime is 27197971. The reversal of 27197944 is 44979172.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 27197944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27197941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1992 + ... + 7639.

It is an arithmetic number, because the mean of its divisors is an integer number (3196620).

Almost surely, 2^27197944 is an apocalyptic number.

It is an amenable number.

27197944 is a deficient number, since it is larger than the sum of its proper divisors (23947976).

27197944 is a wasteful number, since it uses less digits than its factorization.

27197944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9990 (or 9986 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 27197944 is about 5215.1648104350. The cubic root of 27197944 is about 300.7313416087.

The spelling of 27197944 in words is "twenty-seven million, one hundred ninety-seven thousand, nine hundred forty-four".