63264021 has 16 divisors (see below), whose sum is σ = 91217664. Its totient is φ = 38849024.

The previous prime is 63264001. The next prime is 63264031. The reversal of 63264021 is 12046236.

63264021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 63264021 - 2⁹ = 63263509 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 63263982 and 63264000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63264001) 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, 10800 + ... + 15593.

It is an arithmetic number, because the mean of its divisors is an integer number (5701104).

Almost surely, 2^63264021 is an apocalyptic number.

It is an amenable number.

63264021 is a deficient number, since it is larger than the sum of its proper divisors (27953643).

63264021 is a wasteful number, since it uses less digits than its factorization.

63264021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26460.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 63264021 is about 7953.8683041650. The cubic root of 63264021 is about 398.4607951347.

The spelling of 63264021 in words is "sixty-three million, two hundred sixty-four thousand, twenty-one".