27818012 has 6 divisors (see below), whose sum is σ = 48681528. Its totient is φ = 13909004.

The previous prime is 27818009. The next prime is 27818023. The reversal of 27818012 is 21081872.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 3477248 + ... + 3477255.

It is an arithmetic number, because the mean of its divisors is an integer number (8113588).

Almost surely, 2^27818012 is an apocalyptic number.

It is an amenable number.

27818012 is a deficient number, since it is larger than the sum of its proper divisors (20863516).

27818012 is a wasteful number, since it uses less digits than its factorization.

27818012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6954507 (or 6954505 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 27818012 is about 5274.2783392612. The cubic root of 27818012 is about 302.9995824659. Note that the first 3 decimals are identical.

Adding to 27818012 its reverse (21081872), we get a palindrome (48899884).

The spelling of 27818012 in words is "twenty-seven million, eight hundred eighteen thousand, twelve".