27036321 has 16 divisors (see below), whose sum is σ = 39068736. Its totient is φ = 16531776.

The previous prime is 27036301. The next prime is 27036349. The reversal of 27036321 is 12363072.

It is not a de Polignac number, because 27036321 - 2⁶ = 27036257 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27036291 and 27036300.

It is not an unprimeable number, because it can be changed into a prime (27036301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4231 + ... + 8483.

It is an arithmetic number, because the mean of its divisors is an integer number (2441796).

Almost surely, 2^27036321 is an apocalyptic number.

It is an amenable number.

27036321 is a deficient number, since it is larger than the sum of its proper divisors (12032415).

27036321 is a wasteful number, since it uses less digits than its factorization.

27036321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4432.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 27036321 is about 5199.6462379666. The cubic root of 27036321 is about 300.1344619465.

Adding to 27036321 its reverse (12363072), we get a palindrome (39399393).

The spelling of 27036321 in words is "twenty-seven million, thirty-six thousand, three hundred twenty-one".