1608965 has 16 divisors (see below), whose sum is σ = 2135808. Its totient is φ = 1157376.

The previous prime is 1608941. The next prime is 1608979. The reversal of 1608965 is 5698061.

It is a cyclic number.

It is not a de Polignac number, because 1608965 - 2¹⁰ = 1607941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1544 + ... + 2366.

It is an arithmetic number, because the mean of its divisors is an integer number (133488).

2^1608965 is an apocalyptic number.

It is an amenable number.

1608965 is a deficient number, since it is larger than the sum of its proper divisors (526843).

1608965 is a wasteful number, since it uses less digits than its factorization.

1608965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1608965 is about 1268.4498413418. The cubic root of 1608965 is about 117.1787512876.

The spelling of 1608965 in words is "one million, six hundred eight thousand, nine hundred sixty-five".