622642003 has 2 divisors, whose sum is σ = 622642004. Its totient is φ = 622642002.

The previous prime is 622642001. The next prime is 622642019. The reversal of 622642003 is 300246226.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 622642003 - 2¹ = 622642001 is a prime.

Together with 622642001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (622642001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311321001 + 311321002.

It is an arithmetic number, because the mean of its divisors is an integer number (311321002).

Almost surely, 2^622642003 is an apocalyptic number.

622642003 is a deficient number, since it is larger than the sum of its proper divisors (1).

622642003 is an equidigital number, since it uses as much as digits as its factorization.

622642003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 622642003 is about 24952.7954946936. The cubic root of 622642003 is about 853.9113867803.

Adding to 622642003 its reverse (300246226), we get a palindrome (922888229).

The spelling of 622642003 in words is "six hundred twenty-two million, six hundred forty-two thousand, three".