802789 has 8 divisors (see below), whose sum is σ = 888440. Its totient is φ = 720576.

The previous prime is 802787. The next prime is 802793. The reversal of 802789 is 987208.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 146689 + 656100 = 383^2 + 810^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 802789 - 2¹ = 802787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354 + ... + 1315.

It is an arithmetic number, because the mean of its divisors is an integer number (111055).

2⁸⁰²⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

802789 is a deficient number, since it is larger than the sum of its proper divisors (85651).

802789 is a wasteful number, since it uses less digits than its factorization.

802789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 802789 is about 895.9849329090. The cubic root of 802789 is about 92.9395298114.

The spelling of 802789 in words is "eight hundred two thousand, seven hundred eighty-nine".