822349213 has 12 divisors (see below), whose sum is σ = 963600732. Its totient is φ = 699720000.

The previous prime is 822349147. The next prime is 822349247. The reversal of 822349213 is 312943228.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 724794084 + 97555129 = 26922^2 + 9877^2 .

It is a de Polignac number, because none of the positive numbers 2^k-822349213 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 (822349513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54538 + ... + 67963.

It is an arithmetic number, because the mean of its divisors is an integer number (80300061).

Almost surely, 2^822349213 is an apocalyptic number.

It is an amenable number.

822349213 is a deficient number, since it is larger than the sum of its proper divisors (141251519).

822349213 is a wasteful number, since it uses less digits than its factorization.

822349213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122652 (or 122645 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 822349213 is about 28676.6318280233. The cubic root of 822349213 is about 936.8831475898.

The spelling of 822349213 in words is "eight hundred twenty-two million, three hundred forty-nine thousand, two hundred thirteen".