1388227 has 2 divisors, whose sum is σ = 1388228. Its totient is φ = 1388226.

The previous prime is 1388183. The next prime is 1388243. The reversal of 1388227 is 7228831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1388227 - 2¹¹ = 1386179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1388287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694113 + 694114.

It is an arithmetic number, because the mean of its divisors is an integer number (694114).

2^1388227 is an apocalyptic number.

1388227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388227 is an equidigital number, since it uses as much as digits as its factorization.

1388227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 31.

The square root of 1388227 is about 1178.2304528402. The cubic root of 1388227 is about 111.5544319216.

The spelling of 1388227 in words is "one million, three hundred eighty-eight thousand, two hundred twenty-seven".