27706331 has 2 divisors, whose sum is σ = 27706332. Its totient is φ = 27706330.

The previous prime is 27706321. The next prime is 27706361. The reversal of 27706331 is 13360772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27706331 - 2⁶ = 27706267 is a prime.

It is a super-2 number, since 2×27706331² = 1535281554963122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27706294 and 27706303.

It is not a weakly prime, because it can be changed into another prime (27706321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13853165 + 13853166.

It is an arithmetic number, because the mean of its divisors is an integer number (13853166).

Almost surely, 2^27706331 is an apocalyptic number.

27706331 is a deficient number, since it is larger than the sum of its proper divisors (1).

27706331 is an equidigital number, since it uses as much as digits as its factorization.

27706331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 27706331 is about 5263.6803664356. The cubic root of 27706331 is about 302.5935543796.

The spelling of 27706331 in words is "twenty-seven million, seven hundred six thousand, three hundred thirty-one".