27281064 has 32 divisors (see below), whose sum is σ = 68483520. Its totient is φ = 9056256.

The previous prime is 27281053. The next prime is 27281071. The reversal of 27281064 is 46018272.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3957 + ... + 8379.

It is an arithmetic number, because the mean of its divisors is an integer number (2140110).

Almost surely, 2^27281064 is an apocalyptic number.

27281064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27281064 is an abundant number, since it is smaller than the sum of its proper divisors (41202456).

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

27281064 is a wasteful number, since it uses less digits than its factorization.

27281064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689 (or 4685 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 27281064 is about 5223.1277985514. The cubic root of 27281064 is about 301.0373864077.

The spelling of 27281064 in words is "twenty-seven million, two hundred eighty-one thousand, sixty-four".