802985 has 8 divisors (see below), whose sum is σ = 987336. Its totient is φ = 626560.

The previous prime is 802979. The next prime is 802987. The reversal of 802985 is 589208.

It can be written as a sum of positive squares in 4 ways, for example, as 33856 + 769129 = 184^2 + 877^2 .

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

It is not a de Polignac number, because 802985 - 2⁴ = 802969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (802987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1754 + ... + 2163.

It is an arithmetic number, because the mean of its divisors is an integer number (123417).

2⁸⁰²⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

802985 is a deficient number, since it is larger than the sum of its proper divisors (184351).

802985 is a wasteful number, since it uses less digits than its factorization.

802985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 802985 is about 896.0943030731. The cubic root of 802985 is about 92.9470928886.

The spelling of 802985 in words is "eight hundred two thousand, nine hundred eighty-five".