1428873 has 8 divisors (see below), whose sum is σ = 1929600. Its totient is φ = 940368.

The previous prime is 1428863. The next prime is 1428887. The reversal of 1428873 is 3788241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1428873 - 2¹⁸ = 1166729 is a prime.

1428873 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1428853) 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 7 ways as a sum of consecutive naturals, for example, 2778 + ... + 3251.

It is an arithmetic number, because the mean of its divisors is an integer number (241200).

2^1428873 is an apocalyptic number.

It is an amenable number.

1428873 is a deficient number, since it is larger than the sum of its proper divisors (500727).

1428873 is an equidigital number, since it uses as much as digits as its factorization.

1428873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111.

The product of its digits is 10752, while the sum is 33.

The square root of 1428873 is about 1195.3547590569. The cubic root of 1428873 is about 112.6327125177.

The spelling of 1428873 in words is "one million, four hundred twenty-eight thousand, eight hundred seventy-three".