63213210 has 40 divisors (see below), whose sum is σ = 169975476. Its totient is φ = 16856640.

The previous prime is 63213203. The next prime is 63213211. The reversal of 63213210 is 1231236.

63213210 is a `hidden beast` number, since 632 + 1 + 32 + 1 + 0 = 666.

63213210 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 58110129 + 5103081 = 7623^2 + 2259^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (63213211) 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 19 ways as a sum of consecutive naturals, for example, 38211 + ... + 39830.

Almost surely, 2^63213210 is an apocalyptic number.

63213210 is an abundant number, since it is smaller than the sum of its proper divisors (106762266).

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

63213210 is a wasteful number, since it uses less digits than its factorization.

63213210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78060 (or 78051 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 63213210 is about 7950.6735563724. The cubic root of 63213210 is about 398.3540909140.

Adding to 63213210 its reverse (1231236), we get a palindrome (64444446).

The spelling of 63213210 in words is "sixty-three million, two hundred thirteen thousand, two hundred ten".