628065304 has 16 divisors (see below), whose sum is σ = 1178978400. Its totient is φ = 313671072.

The previous prime is 628065287. The next prime is 628065307. The reversal of 628065304 is 403560826.

It is a happy number.

It is a super-2 number, since 2×628065304² = 788932052177224832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 628065304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628065307) by changing a digit.

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, 37744 + ... + 51775.

It is an arithmetic number, because the mean of its divisors is an integer number (73686150).

Almost surely, 2^628065304 is an apocalyptic number.

It is an amenable number.

628065304 is a deficient number, since it is larger than the sum of its proper divisors (550913096).

628065304 is a wasteful number, since it uses less digits than its factorization.

628065304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90402 (or 90398 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 628065304 is about 25061.2310950600. The cubic root of 628065304 is about 856.3834534102.

The spelling of 628065304 in words is "six hundred twenty-eight million, sixty-five thousand, three hundred four".