27796321 has 4 divisors (see below), whose sum is σ = 31767232. Its totient is φ = 23825412.

The previous prime is 27796313. The next prime is 27796331. The reversal of 27796321 is 12369772.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27796321 - 2³ = 27796313 is a prime.

It is a super-2 number, since 2×27796321² = 1545270922270082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27796331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1985445 + ... + 1985458.

It is an arithmetic number, because the mean of its divisors is an integer number (7941808).

Almost surely, 2^27796321 is an apocalyptic number.

It is an amenable number.

27796321 is a deficient number, since it is larger than the sum of its proper divisors (3970911).

27796321 is an equidigital number, since it uses as much as digits as its factorization.

27796321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970910.

The product of its digits is 31752, while the sum is 37.

The square root of 27796321 is about 5272.2216379815. The cubic root of 27796321 is about 302.9208076905.

The spelling of 27796321 in words is "twenty-seven million, seven hundred ninety-six thousand, three hundred twenty-one".