27420307 has 2 divisors, whose sum is σ = 27420308. Its totient is φ = 27420306.

The previous prime is 27420299. The next prime is 27420311. The reversal of 27420307 is 70302472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27420307 - 2³ = 27420299 is a prime.

It is not a weakly prime, because it can be changed into another prime (27420377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13710153 + 13710154.

It is an arithmetic number, because the mean of its divisors is an integer number (13710154).

Almost surely, 2^27420307 is an apocalyptic number.

27420307 is a deficient number, since it is larger than the sum of its proper divisors (1).

27420307 is an equidigital number, since it uses as much as digits as its factorization.

27420307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 27420307 is about 5236.4402985234. The cubic root of 27420307 is about 301.5486840941.

Adding to 27420307 its reverse (70302472), we get a palindrome (97722779).

The spelling of 27420307 in words is "twenty-seven million, four hundred twenty thousand, three hundred seven".