27143812 has 6 divisors (see below), whose sum is σ = 47501678. Its totient is φ = 13571904.

The previous prime is 27143807. The next prime is 27143819. The reversal of 27143812 is 21834172.

It can be written as a sum of positive squares in only one way, i.e., 26790976 + 352836 = 5176^2 + 594^2 .

It is not an unprimeable number, because it can be changed into a prime (27143819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3392973 + ... + 3392980.

Almost surely, 2^27143812 is an apocalyptic number.

It is an amenable number.

27143812 is a deficient number, since it is larger than the sum of its proper divisors (20357866).

27143812 is a wasteful number, since it uses less digits than its factorization.

27143812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6785957 (or 6785955 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 27143812 is about 5209.9723607712. The cubic root of 27143812 is about 300.5316941514.

Adding to 27143812 its reverse (21834172), we get a palindrome (48977984).

The spelling of 27143812 in words is "twenty-seven million, one hundred forty-three thousand, eight hundred twelve".