27888872 has 16 divisors (see below), whose sum is σ = 57045600. Its totient is φ = 12676720.

The previous prime is 27888863. The next prime is 27888877.

It is a happy number.

27888872 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 27888872.

It is not an unprimeable number, because it can be changed into a prime (27888877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158372 + ... + 158547.

It is an arithmetic number, because the mean of its divisors is an integer number (3565350).

Almost surely, 2^27888872 is an apocalyptic number.

27888872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27888872 is an abundant number, since it is smaller than the sum of its proper divisors (29156728).

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

27888872 is a wasteful number, since it uses less digits than its factorization.

27888872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316936 (or 316932 counting only the distinct ones).

The product of its digits is 802816, while the sum is 50.

The square root of 27888872 is about 5280.9915735589. The cubic root of 27888872 is about 303.2566382869.

The spelling of 27888872 in words is "twenty-seven million, eight hundred eighty-eight thousand, eight hundred seventy-two".