27863472 has 80 divisors (see below), whose sum is σ = 88605440. Its totient is φ = 7347456.

The previous prime is 27863467. The next prime is 27863489. The reversal of 27863472 is 27436872.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 27863472.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1179 + ... + 7557.

It is an arithmetic number, because the mean of its divisors is an integer number (1107568).

Almost surely, 2^27863472 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 27863472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44302720).

27863472 is an abundant number, since it is smaller than the sum of its proper divisors (60741968).

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

27863472 is a wasteful number, since it uses less digits than its factorization.

27863472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6410 (or 6404 counting only the distinct ones).

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

The square root of 27863472 is about 5278.5861743463. The cubic root of 27863472 is about 303.1645459016.

The spelling of 27863472 in words is "twenty-seven million, eight hundred sixty-three thousand, four hundred seventy-two".