1608859 has 4 divisors (see below), whose sum is σ = 1838704. Its totient is φ = 1379016.

The previous prime is 1608839. The next prime is 1608883. The reversal of 1608859 is 9588061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9588061 = 7 ⋅1369723.

It is a cyclic number.

It is not a de Polignac number, because 1608859 - 2¹⁷ = 1477787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1608839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114912 + ... + 114925.

It is an arithmetic number, because the mean of its divisors is an integer number (459676).

2^1608859 is an apocalyptic number.

1608859 is a deficient number, since it is larger than the sum of its proper divisors (229845).

1608859 is an equidigital number, since it uses as much as digits as its factorization.

1608859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229844.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 1608859 is about 1268.4080573696. The cubic root of 1608859 is about 117.1761779521.

The spelling of 1608859 in words is "one million, six hundred eight thousand, eight hundred fifty-nine".