1229827 has 2 divisors, whose sum is σ = 1229828. Its totient is φ = 1229826.

The previous prime is 1229807. The next prime is 1229869. The reversal of 1229827 is 7289221.

It is a weak prime.

It is an emirp because it is prime and its reverse (7289221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1229827 - 2¹⁵ = 1197059 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1229807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614913 + 614914.

It is an arithmetic number, because the mean of its divisors is an integer number (614914).

2^1229827 is an apocalyptic number.

1229827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229827 is an equidigital number, since it uses as much as digits as its factorization.

1229827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 31.

The square root of 1229827 is about 1108.9756534749. The cubic root of 1229827 is about 107.1391034452.

The spelling of 1229827 in words is "one million, two hundred twenty-nine thousand, eight hundred twenty-seven".