27332021 has 2 divisors, whose sum is σ = 27332022. Its totient is φ = 27332020.

The previous prime is 27331999. The next prime is 27332023. The reversal of 27332021 is 12023372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19272100 + 8059921 = 4390^2 + 2839^2 .

It is a cyclic number.

It is not a de Polignac number, because 27332021 - 2¹⁴ = 27315637 is a prime.

Together with 27332023, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27331984 and 27332002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27332023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13666010 + 13666011.

It is an arithmetic number, because the mean of its divisors is an integer number (13666011).

Almost surely, 2^27332021 is an apocalyptic number.

It is an amenable number.

27332021 is a deficient number, since it is larger than the sum of its proper divisors (1).

27332021 is an equidigital number, since it uses as much as digits as its factorization.

27332021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 27332021 is about 5228.0035386369. The cubic root of 27332021 is about 301.2247009625.

Adding to 27332021 its reverse (12023372), we get a palindrome (39355393).

The spelling of 27332021 in words is "twenty-seven million, three hundred thirty-two thousand, twenty-one".