628476838 has 8 divisors (see below), whose sum is σ = 1028416680. Its totient is φ = 285671280.

The previous prime is 628476811. The next prime is 628476847. The reversal of 628476838 is 838674826.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14283543 + ... + 14283586.

It is an arithmetic number, because the mean of its divisors is an integer number (128552085).

Almost surely, 2^628476838 is an apocalyptic number.

628476838 is a deficient number, since it is larger than the sum of its proper divisors (399939842).

628476838 is a wasteful number, since it uses less digits than its factorization.

628476838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28567142.

The product of its digits is 3096576, while the sum is 52.

The square root of 628476838 is about 25069.4403208368. The cubic root of 628476838 is about 856.5704583592.

The spelling of 628476838 in words is "six hundred twenty-eight million, four hundred seventy-six thousand, eight hundred thirty-eight".