1428563 has 4 divisors (see below), whose sum is σ = 1463448. Its totient is φ = 1393680.

The previous prime is 1428541. The next prime is 1428571. The reversal of 1428563 is 3658241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3658241 = 19 ⋅192539.

It is a cyclic number.

It is not a de Polignac number, because 1428563 - 2¹⁰ = 1427539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428593) 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 in 3 ways as a sum of consecutive naturals, for example, 17381 + ... + 17462.

It is an arithmetic number, because the mean of its divisors is an integer number (365862).

2^1428563 is an apocalyptic number.

1428563 is a deficient number, since it is larger than the sum of its proper divisors (34885).

1428563 is an equidigital number, since it uses as much as digits as its factorization.

1428563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34884.

The product of its digits is 5760, while the sum is 29.

The square root of 1428563 is about 1195.2250834048. The cubic root of 1428563 is about 112.6245665485.

It can be divided in two parts, 1428 and 563, that added together give a palindrome (1991).

The spelling of 1428563 in words is "one million, four hundred twenty-eight thousand, five hundred sixty-three".