1224887 has 2 divisors, whose sum is σ = 1224888. Its totient is φ = 1224886.

The previous prime is 1224869. The next prime is 1224889. The reversal of 1224887 is 7884221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1224887 - 2⁶ = 1224823 is a prime.

Together with 1224889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224889) 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, 612443 + 612444.

It is an arithmetic number, because the mean of its divisors is an integer number (612444).

2^1224887 is an apocalyptic number.

1224887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224887 is an equidigital number, since it uses as much as digits as its factorization.

1224887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7168, while the sum is 32.

The square root of 1224887 is about 1106.7461316851. The cubic root of 1224887 is about 106.9954579258.

The spelling of 1224887 in words is "one million, two hundred twenty-four thousand, eight hundred eighty-seven".