646763060 has 24 divisors (see below), whose sum is σ = 1378476960. Its totient is φ = 254843424.

The previous prime is 646763041. The next prime is 646763087. The reversal of 646763060 is 60367646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239990 + ... + 242669.

It is an arithmetic number, because the mean of its divisors is an integer number (57436540).

Almost surely, 2^646763060 is an apocalyptic number.

It is an amenable number.

646763060 is an abundant number, since it is smaller than the sum of its proper divisors (731713900).

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

646763060 is a wasteful number, since it uses less digits than its factorization.

646763060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482735 (or 482733 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 646763060 is about 25431.5367211657. The cubic root of 646763060 is about 864.7987815339.

The spelling of 646763060 in words is "six hundred forty-six million, seven hundred sixty-three thousand, sixty".