7881227 has 2 divisors, whose sum is σ = 7881228. Its totient is φ = 7881226.

The previous prime is 7881221. The next prime is 7881229. The reversal of 7881227 is 7221887.

7881227 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7881227 - 2⁶ = 7881163 is a prime.

It is a super-2 number, since 2×7881227² = 124227478051058, which contains 22 as substring.

Together with 7881229, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7881221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3940613 + 3940614.

It is an arithmetic number, because the mean of its divisors is an integer number (3940614).

Almost surely, 2^7881227 is an apocalyptic number.

7881227 is a deficient number, since it is larger than the sum of its proper divisors (1).

7881227 is an equidigital number, since it uses as much as digits as its factorization.

7881227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12544, while the sum is 35.

The square root of 7881227 is about 2807.3523113425. The cubic root of 7881227 is about 199.0052859214.

The spelling of 7881227 in words is "seven million, eight hundred eighty-one thousand, two hundred twenty-seven".