562821349 has 2 divisors, whose sum is σ = 562821350. Its totient is φ = 562821348.

The previous prime is 562821323. The next prime is 562821377. The reversal of 562821349 is 943128265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 361380100 + 201441249 = 19010^2 + 14193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-562821349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (562825349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281410674 + 281410675.

It is an arithmetic number, because the mean of its divisors is an integer number (281410675).

Almost surely, 2^562821349 is an apocalyptic number.

It is an amenable number.

562821349 is a deficient number, since it is larger than the sum of its proper divisors (1).

562821349 is an equidigital number, since it uses as much as digits as its factorization.

562821349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 562821349 is about 23723.8561157330. The cubic root of 562821349 is about 825.6389780051.

The spelling of 562821349 in words is "five hundred sixty-two million, eight hundred twenty-one thousand, three hundred forty-nine".