628463622 has 8 divisors (see below), whose sum is σ = 1256927256. Its totient is φ = 209487872.

The previous prime is 628463617. The next prime is 628463629. The reversal of 628463622 is 226364826.

It is a sphenic number, since it is the product of 3 distinct primes.

628463622 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628463629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52371963 + ... + 52371974.

It is an arithmetic number, because the mean of its divisors is an integer number (157115907).

Almost surely, 2^628463622 is an apocalyptic number.

628463622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628463622 is a wasteful number, since it uses less digits than its factorization.

628463622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104743942.

The product of its digits is 165888, while the sum is 39.

The square root of 628463622 is about 25069.1767315961. The cubic root of 628463622 is about 856.5644541525.

The spelling of 628463622 in words is "six hundred twenty-eight million, four hundred sixty-three thousand, six hundred twenty-two".