628508754 has 16 divisors (see below), whose sum is σ = 1396686240. Its totient is φ = 209502900.

The previous prime is 628508743. The next prime is 628508773. The reversal of 628508754 is 457805826.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5819472 + ... + 5819579.

It is an arithmetic number, because the mean of its divisors is an integer number (87292890).

Almost surely, 2^628508754 is an apocalyptic number.

628508754 is an abundant number, since it is smaller than the sum of its proper divisors (768177486).

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

628508754 is a wasteful number, since it uses less digits than its factorization.

628508754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11639062 (or 11639056 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 628508754 is about 25070.0768646608. The cubic root of 628508754 is about 856.5849578805.

The spelling of 628508754 in words is "six hundred twenty-eight million, five hundred eight thousand, seven hundred fifty-four".