622908073 has 2 divisors, whose sum is σ = 622908074. Its totient is φ = 622908072.

The previous prime is 622908071. The next prime is 622908131. The reversal of 622908073 is 370809226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440874009 + 182034064 = 20997^2 + 13492^2 .

It is a cyclic number.

It is not a de Polignac number, because 622908073 - 2¹ = 622908071 is a prime.

Together with 622908071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (622908071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311454036 + 311454037.

It is an arithmetic number, because the mean of its divisors is an integer number (311454037).

Almost surely, 2^622908073 is an apocalyptic number.

It is an amenable number.

622908073 is a deficient number, since it is larger than the sum of its proper divisors (1).

622908073 is an equidigital number, since it uses as much as digits as its factorization.

622908073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 622908073 is about 24958.1263920191. The cubic root of 622908073 is about 854.0330017942.

The spelling of 622908073 in words is "six hundred twenty-two million, nine hundred eight thousand, seventy-three".