27748064 has 24 divisors (see below), whose sum is σ = 55248480. Its totient is φ = 13716736.

The previous prime is 27748057. The next prime is 27748067. The reversal of 27748064 is 46084772.

27748064 = T₄₆₇ + T₄₆₈ + ... + T₆₄₄.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27748067) 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 3 ways as a sum of consecutive naturals, for example, 2024 + ... + 7719.

It is an arithmetic number, because the mean of its divisors is an integer number (2302020).

Almost surely, 2^27748064 is an apocalyptic number.

It is an amenable number.

27748064 is a deficient number, since it is larger than the sum of its proper divisors (27500416).

27748064 is an equidigital number, since it uses as much as digits as its factorization.

27748064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9842 (or 9834 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 27748064 is about 5267.6431162333. The cubic root of 27748064 is about 302.7454065764.

The spelling of 27748064 in words is "twenty-seven million, seven hundred forty-eight thousand, sixty-four".