1608818 has 4 divisors (see below), whose sum is σ = 2413230. Its totient is φ = 804408.

The previous prime is 1608773. The next prime is 1608821. The reversal of 1608818 is 8188061.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1570009 + 38809 = 1253^2 + 197^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402203 + ... + 402206.

2^1608818 is an apocalyptic number.

1608818 is a deficient number, since it is larger than the sum of its proper divisors (804412).

1608818 is an equidigital number, since it uses as much as digits as its factorization.

1608818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804411.

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 1608818 is about 1268.3918952753. The cubic root of 1608818 is about 117.1751825750.

The spelling of 1608818 in words is "one million, six hundred eight thousand, eight hundred eighteen".