1229663 has 2 divisors, whose sum is σ = 1229664. Its totient is φ = 1229662.

The previous prime is 1229647. The next prime is 1229689. The reversal of 1229663 is 3669221.

It is a weak prime.

It is an emirp because it is prime and its reverse (3669221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1229663 - 2⁴ = 1229647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1229633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614831 + 614832.

It is an arithmetic number, because the mean of its divisors is an integer number (614832).

2^1229663 is an apocalyptic number.

1229663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229663 is an equidigital number, since it uses as much as digits as its factorization.

1229663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 29.

The square root of 1229663 is about 1108.9017088994. The cubic root of 1229663 is about 107.1343408257.

The spelling of 1229663 in words is "one million, two hundred twenty-nine thousand, six hundred sixty-three".