628847904 has 24 divisors (see below), whose sum is σ = 1650726000. Its totient is φ = 209615936.

The previous prime is 628847897. The next prime is 628847929. The reversal of 628847904 is 409748826.

628847904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3275154 + ... + 3275345.

It is an arithmetic number, because the mean of its divisors is an integer number (68780250).

Almost surely, 2^628847904 is an apocalyptic number.

It is an amenable number.

628847904 is an abundant number, since it is smaller than the sum of its proper divisors (1021878096).

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

628847904 is a wasteful number, since it uses less digits than its factorization.

628847904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6550512 (or 6550504 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 628847904 is about 25076.8399923116. The cubic root of 628847904 is about 856.7390042896.

The spelling of 628847904 in words is "six hundred twenty-eight million, eight hundred forty-seven thousand, nine hundred four".