27143712 has 54 divisors (see below), whose sum is σ = 77442183. Its totient is φ = 9018432.

The previous prime is 27143671. The next prime is 27143729. The reversal of 27143712 is 21734172.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 13571856 + 13571856 = 3684^2 + 3684^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3684.

It is a super-2 number, since 2×27143712² = 1473562202277888, which contains 22 as substring.

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 8 ways as a sum of consecutive naturals, for example, 88263 + ... + 88569.

Almost surely, 2^27143712 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 27143712

27143712 is an abundant number, since it is smaller than the sum of its proper divisors (50298471).

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

27143712 is an equidigital number, since it uses as much as digits as its factorization.

27143712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 312 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 27143712 is about 5209.9627637825. The cubic root of 27143712 is about 300.5313250900.

Adding to 27143712 its reverse (21734172), we get a palindrome (48877884).

The spelling of 27143712 in words is "twenty-seven million, one hundred forty-three thousand, seven hundred twelve".