622042849 has 2 divisors, whose sum is σ = 622042850. Its totient is φ = 622042848.

The previous prime is 622042847. The next prime is 622042873. The reversal of 622042849 is 948240226.

622042849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 522442449 + 99600400 = 22857^2 + 9980^2 .

It is a cyclic number.

It is not a de Polignac number, because 622042849 - 2¹ = 622042847 is a prime.

Together with 622042847, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (622042847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311021424 + 311021425.

It is an arithmetic number, because the mean of its divisors is an integer number (311021425).

Almost surely, 2^622042849 is an apocalyptic number.

It is an amenable number.

622042849 is a deficient number, since it is larger than the sum of its proper divisors (1).

622042849 is an equidigital number, since it uses as much as digits as its factorization.

622042849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 622042849 is about 24940.7868560717. The cubic root of 622042849 is about 853.6373991509.

The spelling of 622042849 in words is "six hundred twenty-two million, forty-two thousand, eight hundred forty-nine".