628364680 has 16 divisors (see below), whose sum is σ = 1413820620. Its totient is φ = 251345856.

The previous prime is 628364641. The next prime is 628364683. The reversal of 628364680 is 86463826.

It can be written as a sum of positive squares in 2 ways, for example, as 506880196 + 121484484 = 22514^2 + 11022^2 .

It is not an unprimeable number, because it can be changed into a prime (628364683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7854519 + ... + 7854598.

Almost surely, 2^628364680 is an apocalyptic number.

It is an amenable number.

628364680 is an abundant number, since it is smaller than the sum of its proper divisors (785455940).

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

628364680 is a wasteful number, since it uses less digits than its factorization.

628364680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15709128 (or 15709124 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The square root of 628364680 is about 25067.2032743982. The cubic root of 628364680 is about 856.5195007957.

The spelling of 628364680 in words is "six hundred twenty-eight million, three hundred sixty-four thousand, six hundred eighty".