822407 has 2 divisors, whose sum is σ = 822408. Its totient is φ = 822406.

The previous prime is 822391. The next prime is 822431. The reversal of 822407 is 704228.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 822407 - 2⁴ = 822391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (822007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411203 + 411204.

It is an arithmetic number, because the mean of its divisors is an integer number (411204).

2⁸²²⁴⁰⁷ is an apocalyptic number.

822407 is a deficient number, since it is larger than the sum of its proper divisors (1).

822407 is an equidigital number, since it uses as much as digits as its factorization.

822407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 822407 is about 906.8665833517. The cubic root of 822407 is about 93.6905092200.

The spelling of 822407 in words is "eight hundred twenty-two thousand, four hundred seven".