63065421 has 24 divisors (see below), whose sum is σ = 93804984. Its totient is φ = 40803840.

The previous prime is 63065407. The next prime is 63065437. The reversal of 63065421 is 12456036.

63065421 is a `hidden beast` number, since 6 + 3 + 0 + 654 + 2 + 1 = 666.

63065421 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 4 ways, for example, as 8468100 + 54597321 = 2910^2 + 7389^2 .

It is not a de Polignac number, because 63065421 - 2¹⁹ = 62541133 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63065441) 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 23 ways as a sum of consecutive naturals, for example, 101905 + ... + 102521.

It is an arithmetic number, because the mean of its divisors is an integer number (3908541).

Almost surely, 2^63065421 is an apocalyptic number.

It is an amenable number.

63065421 is a deficient number, since it is larger than the sum of its proper divisors (30739563).

63065421 is a wasteful number, since it uses less digits than its factorization.

63065421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 63065421 is about 7941.3739995041. The cubic root of 63065421 is about 398.0434053652.

The spelling of 63065421 in words is "sixty-three million, sixty-five thousand, four hundred twenty-one".