822429 has 6 divisors (see below), whose sum is σ = 1187966. Its totient is φ = 548280.

The previous prime is 822407. The next prime is 822431. The reversal of 822429 is 924228.

822429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 783225 + 39204 = 885^2 + 198^2 .

It is not a de Polignac number, because 822429 - 2¹³ = 814237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45682 + ... + 45699.

2⁸²²⁴²⁹ is an apocalyptic number.

It is an amenable number.

822429 is a deficient number, since it is larger than the sum of its proper divisors (365537).

822429 is a wasteful number, since it uses less digits than its factorization.

822429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91387 (or 91384 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 822429 is about 906.8787129490. The cubic root of 822429 is about 93.6913446428.

The spelling of 822429 in words is "eight hundred twenty-two thousand, four hundred twenty-nine".