628798466 has 8 divisors (see below), whose sum is σ = 960994044. Its totient is φ = 308467120.

The previous prime is 628798433. The next prime is 628798481. The reversal of 628798466 is 664897826.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 569061025 + 59737441 = 23855^2 + 7729^2 .

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2965925 + ... + 2966136.

Almost surely, 2^628798466 is an apocalyptic number.

628798466 is a deficient number, since it is larger than the sum of its proper divisors (332195578).

628798466 is a wasteful number, since it uses less digits than its factorization.

628798466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932116.

The product of its digits is 6967296, while the sum is 56.

The square root of 628798466 is about 25075.8542426774. The cubic root of 628798466 is about 856.7165523461.

The spelling of 628798466 in words is "six hundred twenty-eight million, seven hundred ninety-eight thousand, four hundred sixty-six".