1608885 has 12 divisors (see below), whose sum is σ = 2788812. Its totient is φ = 858048.

The previous prime is 1608883. The next prime is 1608911. The reversal of 1608885 is 5888061.

It can be written as a sum of positive squares in 2 ways, for example, as 1077444 + 531441 = 1038^2 + 729^2 .

It is not a de Polignac number, because 1608885 - 2¹ = 1608883 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17832 + ... + 17921.

It is an arithmetic number, because the mean of its divisors is an integer number (232401).

2^1608885 is an apocalyptic number.

1608885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1608885 is a deficient number, since it is larger than the sum of its proper divisors (1179927).

1608885 is a wasteful number, since it uses less digits than its factorization.

1608885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35764 (or 35761 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 1608885 is about 1268.4183063958. The cubic root of 1608885 is about 117.1768091581.

It can be divided in two parts, 160 and 8885, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 1608885 in words is "one million, six hundred eight thousand, eight hundred eighty-five".