628464826 has 8 divisors (see below), whose sum is σ = 1028397024. Its totient is φ = 285665820.

The previous prime is 628464817. The next prime is 628464833.

628464826 is nontrivially palindromic in base 10.

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

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, 14283270 + ... + 14283313.

It is an arithmetic number, because the mean of its divisors is an integer number (128549628).

Almost surely, 2^628464826 is an apocalyptic number.

628464826 is a deficient number, since it is larger than the sum of its proper divisors (399932198).

628464826 is a wasteful number, since it uses less digits than its factorization.

628464826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28566596.

The product of its digits is 884736, while the sum is 46.

The square root of 628464826 is about 25069.2007451374. The cubic root of 628464826 is about 856.5650011493.

The spelling of 628464826 in words is "six hundred twenty-eight million, four hundred sixty-four thousand, eight hundred twenty-six".