628448675 has 6 divisors (see below), whose sum is σ = 779276388. Its totient is φ = 502758920.

The previous prime is 628448671. The next prime is 628448683. The reversal of 628448675 is 576844826.

It is a happy number.

It is not a de Polignac number, because 628448675 - 2² = 628448671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628448671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12568949 + ... + 12568998.

It is an arithmetic number, because the mean of its divisors is an integer number (129879398).

Almost surely, 2^628448675 is an apocalyptic number.

628448675 is a deficient number, since it is larger than the sum of its proper divisors (150827713).

628448675 is a wasteful number, since it uses less digits than its factorization.

628448675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25137957 (or 25137952 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 50.

The square root of 628448675 is about 25068.8786147287. The cubic root of 628448675 is about 856.5576634277.

The spelling of 628448675 in words is "six hundred twenty-eight million, four hundred forty-eight thousand, six hundred seventy-five".