802815 has 32 divisors (see below), whose sum is σ = 1451520. Its totient is φ = 375936.

The previous prime is 802811. The next prime is 802829. The reversal of 802815 is 518208.

It is a Cunningham number, because it is equal to 896²-1.

It is not a de Polignac number, because 802815 - 2² = 802811 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4396 + ... + 4574.

It is an arithmetic number, because the mean of its divisors is an integer number (45360).

2⁸⁰²⁸¹⁵ is an apocalyptic number.

802815 is a deficient number, since it is larger than the sum of its proper divisors (648705).

802815 is a wasteful number, since it uses less digits than its factorization.

802815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 802815 is about 895.9994419641. Note that the first 3 decimals coincide. The cubic root of 802815 is about 92.9405331476.

The spelling of 802815 in words is "eight hundred two thousand, eight hundred fifteen".