822434 has 16 divisors (see below), whose sum is σ = 1356480. Its totient is φ = 372240.

The previous prime is 822433. The next prime is 822517. The reversal of 822434 is 434228.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (822431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404 + ... + 1344.

It is an arithmetic number, because the mean of its divisors is an integer number (84780).

2⁸²²⁴³⁴ is an apocalyptic number.

822434 is a deficient number, since it is larger than the sum of its proper divisors (534046).

822434 is a wasteful number, since it uses less digits than its factorization.

822434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985.

The product of its digits is 1536, while the sum is 23.

The square root of 822434 is about 906.8814696530. The cubic root of 822434 is about 93.6915345096.

The spelling of 822434 in words is "eight hundred twenty-two thousand, four hundred thirty-four".