1428863 has 2 divisors, whose sum is σ = 1428864. Its totient is φ = 1428862.

The previous prime is 1428853. The next prime is 1428887. The reversal of 1428863 is 3688241.

It is a weak prime.

It is an emirp because it is prime and its reverse (3688241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1428863 - 2¹² = 1424767 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1428853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714431 + 714432.

It is an arithmetic number, because the mean of its divisors is an integer number (714432).

2^1428863 is an apocalyptic number.

1428863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428863 is an equidigital number, since it uses as much as digits as its factorization.

1428863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 32.

The square root of 1428863 is about 1195.3505761909. The cubic root of 1428863 is about 112.6324497629.

Adding to 1428863 its sum of digits (32), we get a triangular number (1428895 = T₁₆₉₀).

The spelling of 1428863 in words is "one million, four hundred twenty-eight thousand, eight hundred sixty-three".