27684920 has 32 divisors (see below), whose sum is σ = 62586000. Its totient is φ = 11021568.

The previous prime is 27684913. The next prime is 27684929. The reversal of 27684920 is 2948672.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27684929) 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 in 7 ways as a sum of consecutive naturals, for example, 7556 + ... + 10604.

Almost surely, 2^27684920 is an apocalyptic number.

27684920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27684920 is an abundant number, since it is smaller than the sum of its proper divisors (34901080).

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

27684920 is a wasteful number, since it uses less digits than its factorization.

27684920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287 (or 3283 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 27684920 is about 5261.6461302524. The cubic root of 27684920 is about 302.5155878405.

The spelling of 27684920 in words is "twenty-seven million, six hundred eighty-four thousand, nine hundred twenty".