7428227 has 2 divisors, whose sum is σ = 7428228. Its totient is φ = 7428226.

The previous prime is 7428217. The next prime is 7428271. The reversal of 7428227 is 7228247.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7428227 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7428193 and 7428202.

It is not a weakly prime, because it can be changed into another prime (7428217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3714113 + 3714114.

It is an arithmetic number, because the mean of its divisors is an integer number (3714114).

Almost surely, 2^7428227 is an apocalyptic number.

7428227 is a deficient number, since it is larger than the sum of its proper divisors (1).

7428227 is an equidigital number, since it uses as much as digits as its factorization.

7428227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12544, while the sum is 32.

The square root of 7428227 is about 2725.4773893760. The cubic root of 7428227 is about 195.1169756184.

The spelling of 7428227 in words is "seven million, four hundred twenty-eight thousand, two hundred twenty-seven".