27964321 has 8 divisors (see below), whose sum is σ = 34864704. Its totient is φ = 21790320.

The previous prime is 27964301. The next prime is 27964327. The reversal of 27964321 is 12346972.

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 27964321 - 2⁹ = 27963809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27964327) 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, 181510 + ... + 181663.

It is an arithmetic number, because the mean of its divisors is an integer number (4358088).

Almost surely, 2^27964321 is an apocalyptic number.

It is an amenable number.

27964321 is a deficient number, since it is larger than the sum of its proper divisors (6900383).

27964321 is a wasteful number, since it uses less digits than its factorization.

27964321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363191.

The product of its digits is 18144, while the sum is 34.

The square root of 27964321 is about 5288.1301988510. The cubic root of 27964321 is about 303.5298632483.

It can be divided in two parts, 2796 and 4321, that added together give a palindrome (7117).

The spelling of 27964321 in words is "twenty-seven million, nine hundred sixty-four thousand, three hundred twenty-one".