1828859 has 4 divisors (see below), whose sum is σ = 1835016. Its totient is φ = 1822704.

The previous prime is 1828847. The next prime is 1828867. The reversal of 1828859 is 9588281.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1828859 - 2¹⁶ = 1763323 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2609 + ... + 3234.

It is an arithmetic number, because the mean of its divisors is an integer number (458754).

2^1828859 is an apocalyptic number.

1828859 is a deficient number, since it is larger than the sum of its proper divisors (6157).

1828859 is an equidigital number, since it uses as much as digits as its factorization.

1828859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6156.

The product of its digits is 46080, while the sum is 41.

The square root of 1828859 is about 1352.3531343551. The cubic root of 1828859 is about 122.2906935286.

The spelling of 1828859 in words is "one million, eight hundred twenty-eight thousand, eight hundred fifty-nine".