628085836 has 12 divisors (see below), whose sum is σ = 1256171728. Its totient is φ = 269179632.

The previous prime is 628085833. The next prime is 628085837. The reversal of 628085836 is 638580826.

It is a happy number.

628085836 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (628085833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11215791 + ... + 11215846.

Almost surely, 2^628085836 is an apocalyptic number.

It is an amenable number.

628085836 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

628085836 is a wasteful number, since it uses less digits than its factorization.

628085836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22431648 (or 22431646 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 628085836 is about 25061.6407284120. The cubic root of 628085836 is about 856.3927852813.

It can be divided in two parts, 62808 and 5836, that added together give a square (68644 = 262²).

The spelling of 628085836 in words is "six hundred twenty-eight million, eighty-five thousand, eight hundred thirty-six".