822705 has 16 divisors (see below), whose sum is σ = 1417920. Its totient is φ = 404928.

The previous prime is 822697. The next prime is 822713. The reversal of 822705 is 507228.

822705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (822697) and next prime (822713).

It is not a de Polignac number, because 822705 - 2³ = 822697 is a prime.

822705 is a lucky number.

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, 1915 + ... + 2304.

It is an arithmetic number, because the mean of its divisors is an integer number (88620).

2⁸²²⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

822705 is a deficient number, since it is larger than the sum of its proper divisors (595215).

822705 is a wasteful number, since it uses less digits than its factorization.

822705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 822705 is about 907.0308704780. The cubic root of 822705 is about 93.7018241367.

The spelling of 822705 in words is "eight hundred twenty-two thousand, seven hundred five".