63806020 has 12 divisors (see below), whose sum is σ = 133992684. Its totient is φ = 25522400.

The previous prime is 63805997. The next prime is 63806027. The reversal of 63806020 is 2060836.

63806020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42406144 + 21399876 = 6512^2 + 4626^2 .

It is a super-4 number, since 4×63806020⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (63806027) 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 3 ways as a sum of consecutive naturals, for example, 1595131 + ... + 1595170.

It is an arithmetic number, because the mean of its divisors is an integer number (11166057).

Almost surely, 2^63806020 is an apocalyptic number.

It is an amenable number.

63806020 is an abundant number, since it is smaller than the sum of its proper divisors (70186664).

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

63806020 is a wasteful number, since it uses less digits than its factorization.

63806020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190310 (or 3190308 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 63806020 is about 7987.8670494695. The cubic root of 63806020 is about 399.5954660186.

Adding to 63806020 its reverse (2060836), we get a palindrome (65866856).

The spelling of 63806020 in words is "sixty-three million, eight hundred six thousand, twenty".