628717548 has 24 divisors (see below), whose sum is σ = 1488905152. Its totient is φ = 206444304.

The previous prime is 628717547. The next prime is 628717553. The reversal of 628717548 is 845717826.

It is a junction number, because it is equal to n+sod(n) for n = 628717497 and 628717506.

It is not an unprimeable number, because it can be changed into a prime (628717547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390190 + ... + 391797.

Almost surely, 2^628717548 is an apocalyptic number.

It is an amenable number.

628717548 is an abundant number, since it is smaller than the sum of its proper divisors (860187604).

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

628717548 is a wasteful number, since it uses less digits than its factorization.

628717548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782061 (or 782059 counting only the distinct ones).

The product of its digits is 752640, while the sum is 48.

The square root of 628717548 is about 25074.2407262912. The cubic root of 628717548 is about 856.6798014274.

The spelling of 628717548 in words is "six hundred twenty-eight million, seven hundred seventeen thousand, five hundred forty-eight".