1608985 has 8 divisors (see below), whose sum is σ = 2206656. Its totient is φ = 1103280.

The previous prime is 1608979. The next prime is 1609009. The reversal of 1608985 is 5898061.

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

It is not a de Polignac number, because 1608985 - 2⁹ = 1608473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22951 + ... + 23020.

It is an arithmetic number, because the mean of its divisors is an integer number (275832).

2^1608985 is an apocalyptic number.

It is an amenable number.

1608985 is a deficient number, since it is larger than the sum of its proper divisors (597671).

1608985 is an equidigital number, since it uses as much as digits as its factorization.

1608985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45983.

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

The square root of 1608985 is about 1268.4577249558. The cubic root of 1608985 is about 117.1792368099.

The spelling of 1608985 in words is "one million, six hundred eight thousand, nine hundred eighty-five".