63205812 has 48 divisors (see below), whose sum is σ = 164310720. Its totient is φ = 21011616.

The previous prime is 63205811. The next prime is 63205843. The reversal of 63205812 is 21850236.

63205812 is a `hidden beast` number, since 63 + 20 + 581 + 2 = 666.

63205812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63205811) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 62898 + ... + 63894.

It is an arithmetic number, because the mean of its divisors is an integer number (3423140).

Almost surely, 2^63205812 is an apocalyptic number.

It is an amenable number.

63205812 is an abundant number, since it is smaller than the sum of its proper divisors (101104908).

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

63205812 is a wasteful number, since it uses less digits than its factorization.

63205812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597 (or 1589 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 63205812 is about 7950.2082991580. The cubic root of 63205812 is about 398.3385501827.

The spelling of 63205812 in words is "sixty-three million, two hundred five thousand, eight hundred twelve".