27824081 has 8 divisors (see below), whose sum is σ = 28800000. Its totient is φ = 26853120.

The previous prime is 27824077. The next prime is 27824101. The reversal of 27824081 is 18042872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27824081 - 2² = 27824077 is a prime.

It is a super-2 number, since 2×27824081² = 1548358966989122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27824051) 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 7 ways as a sum of consecutive naturals, for example, 12920 + ... + 14918.

It is an arithmetic number, because the mean of its divisors is an integer number (3600000).

Almost surely, 2^27824081 is an apocalyptic number.

It is an amenable number.

27824081 is a deficient number, since it is larger than the sum of its proper divisors (975919).

27824081 is a wasteful number, since it uses less digits than its factorization.

27824081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 27824081 is about 5274.8536472589. The cubic root of 27824081 is about 303.0216158012.

The spelling of 27824081 in words is "twenty-seven million, eight hundred twenty-four thousand, eighty-one".