628364812 has 24 divisors (see below), whose sum is σ = 1165552416. Its totient is φ = 295388928.

The previous prime is 628364797. The next prime is 628364819. The reversal of 628364812 is 218463826.

It is not an unprimeable number, because it can be changed into a prime (628364819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67938 + ... + 76630.

It is an arithmetic number, because the mean of its divisors is an integer number (48564684).

Almost surely, 2^628364812 is an apocalyptic number.

It is an amenable number.

628364812 is a deficient number, since it is larger than the sum of its proper divisors (537187604).

628364812 is a wasteful number, since it uses less digits than its factorization.

628364812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9777 (or 9775 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 628364812 is about 25067.2059073204. The cubic root of 628364812 is about 856.5195607718.

The spelling of 628364812 in words is "six hundred twenty-eight million, three hundred sixty-four thousand, eight hundred twelve".