63246821 has 12 divisors (see below), whose sum is σ = 69802656. Its totient is φ = 57262920.

The previous prime is 63246791. The next prime is 63246853. The reversal of 63246821 is 12864236.

63246821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63246821 - 2¹⁴ = 63230437 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 (63246221) 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 11 ways as a sum of consecutive naturals, for example, 33320 + ... + 35166.

It is an arithmetic number, because the mean of its divisors is an integer number (5816888).

Almost surely, 2^63246821 is an apocalyptic number.

It is an amenable number.

63246821 is a deficient number, since it is larger than the sum of its proper divisors (6555835).

63246821 is a wasteful number, since it uses less digits than its factorization.

63246821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152 (or 2141 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 63246821 is about 7952.7869957644. The cubic root of 63246821 is about 398.4246811542.

The spelling of 63246821 in words is "sixty-three million, two hundred forty-six thousand, eight hundred twenty-one".