622249 has 2 divisors, whose sum is σ = 622250. Its totient is φ = 622248.

The previous prime is 622247. The next prime is 622277. The reversal of 622249 is 942226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403225 + 219024 = 635^2 + 468^2 .

It is a cyclic number.

It is not a de Polignac number, because 622249 - 2¹ = 622247 is a prime.

Together with 622247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (622241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311124 + 311125.

It is an arithmetic number, because the mean of its divisors is an integer number (311125).

2⁶²²²⁴⁹ is an apocalyptic number.

It is an amenable number.

622249 is a deficient number, since it is larger than the sum of its proper divisors (1).

622249 is an equidigital number, since it uses as much as digits as its factorization.

622249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 622249 is about 788.8276110786. The cubic root of 622249 is about 85.3731689958.

The spelling of 622249 in words is "six hundred twenty-two thousand, two hundred forty-nine".