63841620 has 48 divisors (see below), whose sum is σ = 181435968. Its totient is φ = 16769280.

The previous prime is 63841601. The next prime is 63841621. The reversal of 63841620 is 2614836.

63841620 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 (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63841621) 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, 3921 + ... + 11960.

It is an arithmetic number, because the mean of its divisors is an integer number (3779916).

Almost surely, 2^63841620 is an apocalyptic number.

63841620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63841620 is an abundant number, since it is smaller than the sum of its proper divisors (117594348).

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

63841620 is a wasteful number, since it uses less digits than its factorization.

63841620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15960 (or 15958 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 63841620 is about 7990.0951183324. The cubic root of 63841620 is about 399.6697691106.

The spelling of 63841620 in words is "sixty-three million, eight hundred forty-one thousand, six hundred twenty".