628476478 has 16 divisors (see below), whose sum is σ = 1079269344. Its totient is φ = 268876800.

The previous prime is 628476461. The next prime is 628476479. The reversal of 628476478 is 874674826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628476479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30823 + ... + 46978.

It is an arithmetic number, because the mean of its divisors is an integer number (67454334).

Almost surely, 2^628476478 is an apocalyptic number.

628476478 is a deficient number, since it is larger than the sum of its proper divisors (450792866).

628476478 is a wasteful number, since it uses less digits than its factorization.

628476478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78387.

The product of its digits is 3612672, while the sum is 52.

The square root of 628476478 is about 25069.4331407792. The cubic root of 628476478 is about 856.5702948074.

The spelling of 628476478 in words is "six hundred twenty-eight million, four hundred seventy-six thousand, four hundred seventy-eight".