628366847 has 8 divisors (see below), whose sum is σ = 635821056. Its totient is φ = 620938872.

The previous prime is 628366811. The next prime is 628366853. The reversal of 628366847 is 748663826.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 628366847 - 2⁸ = 628366591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 628366795 and 628366804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628366247) 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, 43898 + ... + 56424.

It is an arithmetic number, because the mean of its divisors is an integer number (79477632).

Almost surely, 2^628366847 is an apocalyptic number.

628366847 is a deficient number, since it is larger than the sum of its proper divisors (7454209).

628366847 is a wasteful number, since it uses less digits than its factorization.

628366847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13117.

The product of its digits is 2322432, while the sum is 50.

The square root of 628366847 is about 25067.2464981697. The cubic root of 628366847 is about 856.5204854021.

The spelling of 628366847 in words is "six hundred twenty-eight million, three hundred sixty-six thousand, eight hundred forty-seven".