27870868 has 6 divisors (see below), whose sum is σ = 48774026. Its totient is φ = 13935432.

The previous prime is 27870863. The next prime is 27870877. The reversal of 27870868 is 86807872.

It can be written as a sum of positive squares in only one way, i.e., 25220484 + 2650384 = 5022^2 + 1628^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27870863) by changing a digit.

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, 3483855 + ... + 3483862.

Almost surely, 2^27870868 is an apocalyptic number.

It is an amenable number.

27870868 is a deficient number, since it is larger than the sum of its proper divisors (20903158).

27870868 is a wasteful number, since it uses less digits than its factorization.

27870868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6967721 (or 6967719 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 27870868 is about 5279.2866942419. The cubic root of 27870868 is about 303.1913672375.

The spelling of 27870868 in words is "twenty-seven million, eight hundred seventy thousand, eight hundred sixty-eight".