27748008 has 40 divisors (see below), whose sum is σ = 77721930. Its totient is φ = 9249120.

The previous prime is 27748003. The next prime is 27748009. The reversal of 27748008 is 80084772.

It can be written as a sum of positive squares in only one way, i.e., 27436644 + 311364 = 5238^2 + 558^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (27748003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20763 + ... + 22058.

Almost surely, 2^27748008 is an apocalyptic number.

It is an amenable number.

27748008 is an abundant number, since it is smaller than the sum of its proper divisors (49973922).

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

27748008 is a wasteful number, since it uses less digits than its factorization.

27748008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42839 (or 42826 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 27748008 is about 5267.6378007604. The cubic root of 27748008 is about 302.7452029135.

The spelling of 27748008 in words is "twenty-seven million, seven hundred forty-eight thousand, eight".