822494429 has 2 divisors, whose sum is σ = 822494430. Its totient is φ = 822494428.

The previous prime is 822494389. The next prime is 822494461. The reversal of 822494429 is 924494228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 601377529 + 221116900 = 24523^2 + 14870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-822494429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 822494429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (822494129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411247214 + 411247215.

It is an arithmetic number, because the mean of its divisors is an integer number (411247215).

Almost surely, 2^822494429 is an apocalyptic number.

It is an amenable number.

822494429 is a deficient number, since it is larger than the sum of its proper divisors (1).

822494429 is an equidigital number, since it uses as much as digits as its factorization.

822494429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 44.

The square root of 822494429 is about 28679.1636733012. The cubic root of 822494429 is about 936.9382914036.

The spelling of 822494429 in words is "eight hundred twenty-two million, four hundred ninety-four thousand, four hundred twenty-nine".