622349197 has 2 divisors, whose sum is σ = 622349198. Its totient is φ = 622349196.

The previous prime is 622349183. The next prime is 622349207. The reversal of 622349197 is 791943226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 616727556 + 5621641 = 24834^2 + 2371^2 .

It is a cyclic number.

It is not a de Polignac number, because 622349197 - 2¹¹ = 622347149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622349297) 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, 311174598 + 311174599.

It is an arithmetic number, because the mean of its divisors is an integer number (311174599).

Almost surely, 2^622349197 is an apocalyptic number.

It is an amenable number.

622349197 is a deficient number, since it is larger than the sum of its proper divisors (1).

622349197 is an equidigital number, since it uses as much as digits as its factorization.

622349197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 622349197 is about 24946.9276064208. The cubic root of 622349197 is about 853.7775112520. Note that the first 3 decimals are identical.

The spelling of 622349197 in words is "six hundred twenty-two million, three hundred forty-nine thousand, one hundred ninety-seven".