802705 has 4 divisors (see below), whose sum is σ = 963252. Its totient is φ = 642160.

The previous prime is 802667. The next prime is 802709. The reversal of 802705 is 507208.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 394384 + 408321 = 628^2 + 639^2 .

It is not a de Polignac number, because 802705 - 2¹⁷ = 671633 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (802709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80266 + ... + 80275.

It is an arithmetic number, because the mean of its divisors is an integer number (240813).

2⁸⁰²⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

802705 is a deficient number, since it is larger than the sum of its proper divisors (160547).

802705 is a wasteful number, since it uses less digits than its factorization.

802705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160546.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 802705 is about 895.9380558945. The cubic root of 802705 is about 92.9362881158.

The spelling of 802705 in words is "eight hundred two thousand, seven hundred five".