27889772 has 18 divisors (see below), whose sum is σ = 49673148. Its totient is φ = 13701688.

The previous prime is 27889751. The next prime is 27889781. The reversal of 27889772 is 27798872.

It is a self number, because there is not a number n which added to its sum of digits gives 27889772.

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 5 ways as a sum of consecutive naturals, for example, 12923 + ... + 14925.

Almost surely, 2^27889772 is an apocalyptic number.

It is an amenable number.

27889772 is a deficient number, since it is larger than the sum of its proper divisors (21783376).

27889772 is a wasteful number, since it uses less digits than its factorization.

27889772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125 (or 2064 counting only the distinct ones).

The product of its digits is 790272, while the sum is 50.

The square root of 27889772 is about 5281.0767841417. The cubic root of 27889772 is about 303.2599003770.

The spelling of 27889772 in words is "twenty-seven million, eight hundred eighty-nine thousand, seven hundred seventy-two".