1608005 has 8 divisors (see below), whose sum is σ = 2205312. Its totient is φ = 1102608.

The previous prime is 1607987. The next prime is 1608007. The reversal of 1608005 is 5008061.

1608005 is nontrivially palindromic in base 6.

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

It is a cyclic number.

It is not a de Polignac number, because 1608005 - 2⁶ = 1607941 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 (1608007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22937 + ... + 23006.

It is an arithmetic number, because the mean of its divisors is an integer number (275664).

2^1608005 is an apocalyptic number.

It is an amenable number.

1608005 is a deficient number, since it is larger than the sum of its proper divisors (597307).

1608005 is an equidigital number, since it uses as much as digits as its factorization.

1608005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45955.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1608005 is about 1268.0713702312. The cubic root of 1608005 is about 117.1554414825.

It can be divided in two parts, 160 and 8005, that multiplied together give a triangular number (1280800 = T₁₆₀₀).

The spelling of 1608005 in words is "one million, six hundred eight thousand, five".