628223803 has 2 divisors, whose sum is σ = 628223804. Its totient is φ = 628223802.

The previous prime is 628223801. The next prime is 628223821. The reversal of 628223803 is 308322826.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 628223803 - 2¹ = 628223801 is a prime.

Together with 628223801, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (628223801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314111901 + 314111902.

It is an arithmetic number, because the mean of its divisors is an integer number (314111902).

Almost surely, 2^628223803 is an apocalyptic number.

628223803 is a deficient number, since it is larger than the sum of its proper divisors (1).

628223803 is an equidigital number, since it uses as much as digits as its factorization.

628223803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 628223803 is about 25064.3931304949. The cubic root of 628223803 is about 856.4554865271.

The spelling of 628223803 in words is "six hundred twenty-eight million, two hundred twenty-three thousand, eight hundred three".