27412321 has 2 divisors, whose sum is σ = 27412322. Its totient is φ = 27412320.

The previous prime is 27412291. The next prime is 27412349. The reversal of 27412321 is 12321472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18792225 + 8620096 = 4335^2 + 2936^2 .

It is a cyclic number.

It is not a de Polignac number, because 27412321 - 2⁹ = 27411809 is a prime.

It is a Chen prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 27412292 and 27412301.

It is not a weakly prime, because it can be changed into another prime (27412351) 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 as a sum of consecutive naturals, namely, 13706160 + 13706161.

It is an arithmetic number, because the mean of its divisors is an integer number (13706161).

Almost surely, 2^27412321 is an apocalyptic number.

It is an amenable number.

27412321 is a deficient number, since it is larger than the sum of its proper divisors (1).

27412321 is an equidigital number, since it uses as much as digits as its factorization.

27412321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 22.

The square root of 27412321 is about 5235.6777020745. The cubic root of 27412321 is about 301.5194065029.

Adding to 27412321 its reverse (12321472), we get a palindrome (39733793).

The spelling of 27412321 in words is "twenty-seven million, four hundred twelve thousand, three hundred twenty-one".