27000001 has 16 divisors (see below), whose sum is σ = 31787008. Its totient is φ = 22453200.

The previous prime is 26999981. The next prime is 27000011. The reversal of 27000001 is 10000072.

It is a Cunningham number, because it is equal to 300³+1.

It is not a de Polignac number, because 27000001 - 2⁷ = 26999873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27000011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81406 + ... + 81736.

It is an arithmetic number, because the mean of its divisors is an integer number (1986688).

Almost surely, 2^27000001 is an apocalyptic number.

It is an amenable number.

27000001 is a deficient number, since it is larger than the sum of its proper divisors (4787007).

27000001 is a wasteful number, since it uses less digits than its factorization.

27000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652.

The product of its (nonzero) digits is 14, while the sum is 10.

The square root of 27000001 is about 5196.1525189317. The cubic root of 27000001 is about 300.0000037037. Note that the first 5 decimals are identical.

Adding to 27000001 its reverse (10000072), we get a palindrome (37000073).

The spelling of 27000001 in words is "twenty-seven million, one", and thus it is an aban number and an uban number.