12788227 has 2 divisors, whose sum is σ = 12788228. Its totient is φ = 12788226.

The previous prime is 12788221. The next prime is 12788239. The reversal of 12788227 is 72288721.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12788227 - 2⁷ = 12788099 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12788221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6394113 + 6394114.

It is an arithmetic number, because the mean of its divisors is an integer number (6394114).

Almost surely, 2^12788227 is an apocalyptic number.

12788227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12788227 is an equidigital number, since it uses as much as digits as its factorization.

12788227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25088, while the sum is 37.

The square root of 12788227 is about 3576.0630587281. The cubic root of 12788227 is about 233.8496794313.

The spelling of 12788227 in words is "twelve million, seven hundred eighty-eight thousand, two hundred twenty-seven".