820295 has 16 divisors (see below), whose sum is σ = 1175040. Its totient is φ = 537504.

The previous prime is 820279. The next prime is 820319. The reversal of 820295 is 592028.

It is a cyclic number.

It is not a de Polignac number, because 820295 - 2⁴ = 820279 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 820295.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296 + ... + 1314.

It is an arithmetic number, because the mean of its divisors is an integer number (73440).

2⁸²⁰²⁹⁵ is an apocalyptic number.

820295 is a deficient number, since it is larger than the sum of its proper divisors (354745).

820295 is a wasteful number, since it uses less digits than its factorization.

820295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 820295 is about 905.7013856675. The cubic root of 820295 is about 93.6102391580.

The spelling of 820295 in words is "eight hundred twenty thousand, two hundred ninety-five".