628325672 has 16 divisors (see below), whose sum is σ = 1268734740. Its totient is φ = 289996416.

The previous prime is 628325651. The next prime is 628325683. The reversal of 628325672 is 276523826.

It can be written as a sum of positive squares in 2 ways, for example, as 628304356 + 21316 = 25066^2 + 146^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3020693 + ... + 3020900.

Almost surely, 2^628325672 is an apocalyptic number.

It is an amenable number.

628325672 is an abundant number, since it is smaller than the sum of its proper divisors (640409068).

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

628325672 is a wasteful number, since it uses less digits than its factorization.

628325672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6041612 (or 6041608 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 628325672 is about 25066.4251938724. The cubic root of 628325672 is about 856.5017765850.

The spelling of 628325672 in words is "six hundred twenty-eight million, three hundred twenty-five thousand, six hundred seventy-two".