628866484 has 12 divisors (see below), whose sum is σ = 1158438400. Its totient is φ = 297884088.

The previous prime is 628866481. The next prime is 628866521. The reversal of 628866484 is 484668826.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628866481) 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 in 3 ways as a sum of consecutive naturals, for example, 4137204 + ... + 4137355.

Almost surely, 2^628866484 is an apocalyptic number.

It is an amenable number.

628866484 is a deficient number, since it is larger than the sum of its proper divisors (529571916).

628866484 is a wasteful number, since it uses less digits than its factorization.

628866484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8274582 (or 8274580 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 52.

The square root of 628866484 is about 25077.2104509254. The cubic root of 628866484 is about 856.7474419705.

The spelling of 628866484 in words is "six hundred twenty-eight million, eight hundred sixty-six thousand, four hundred eighty-four".