27916644 has 48 divisors (see below), whose sum is σ = 75152000. Its totient is φ = 7900416.

The previous prime is 27916639. The next prime is 27916663. The reversal of 27916644 is 44661972.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7632 + ... + 10680.

Almost surely, 2^27916644 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 27916644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37576000).

27916644 is an abundant number, since it is smaller than the sum of its proper divisors (47235356).

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

27916644 is a wasteful number, since it uses less digits than its factorization.

27916644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172 (or 3170 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 27916644 is about 5283.6203497223. The cubic root of 27916644 is about 303.3572668258.

The spelling of 27916644 in words is "twenty-seven million, nine hundred sixteen thousand, six hundred forty-four".