622809241 has 2 divisors, whose sum is σ = 622809242. Its totient is φ = 622809240.

The previous prime is 622809221. The next prime is 622809281. The reversal of 622809241 is 142908226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 510534025 + 112275216 = 22595^2 + 10596^2 .

It is a cyclic number.

It is not a de Polignac number, because 622809241 - 2⁹ = 622808729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 622809197 and 622809206.

It is not a weakly prime, because it can be changed into another prime (622809211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311404620 + 311404621.

It is an arithmetic number, because the mean of its divisors is an integer number (311404621).

Almost surely, 2^622809241 is an apocalyptic number.

It is an amenable number.

622809241 is a deficient number, since it is larger than the sum of its proper divisors (1).

622809241 is an equidigital number, since it uses as much as digits as its factorization.

622809241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 622809241 is about 24956.1463571602. The cubic root of 622809241 is about 853.9878318043.

The spelling of 622809241 in words is "six hundred twenty-two million, eight hundred nine thousand, two hundred forty-one".