27947244 has 48 divisors (see below), whose sum is σ = 72504320. Its totient is φ = 8320320.

The previous prime is 27947221. The next prime is 27947251. The reversal of 27947244 is 44274972.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1947 + ... + 7725.

Almost surely, 2^27947244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27947244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36252160).

27947244 is an abundant number, since it is smaller than the sum of its proper divisors (44557076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27947244 is a wasteful number, since it uses less digits than its factorization.

27947244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5830 (or 5828 counting only the distinct ones).

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

The square root of 27947244 is about 5286.5152983795. The cubic root of 27947244 is about 303.4680650383.

The spelling of 27947244 in words is "twenty-seven million, nine hundred forty-seven thousand, two hundred forty-four".