983665 has 8 divisors (see below), whose sum is σ = 1191528. Its totient is φ = 779520.

The previous prime is 983659. The next prime is 983699. The reversal of 983665 is 566389.

It can be written as a sum of positive squares in 4 ways, for example, as 135424 + 848241 = 368^2 + 921^2 .

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

It is not a de Polignac number, because 983665 - 2⁹ = 983153 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, 306 + ... + 1435.

It is an arithmetic number, because the mean of its divisors is an integer number (148941).

2⁹⁸³⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

983665 is a deficient number, since it is larger than the sum of its proper divisors (207863).

983665 is a wasteful number, since it uses less digits than its factorization.

983665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859.

The product of its digits is 38880, while the sum is 37.

The square root of 983665 is about 991.7988707394. The cubic root of 983665 is about 99.4525079954.

The spelling of 983665 in words is "nine hundred eighty-three thousand, six hundred sixty-five".