63641312 has 96 divisors (see below), whose sum is σ = 151139520. Its totient is φ = 25804800.

The previous prime is 63641309. The next prime is 63641321. The reversal of 63641312 is 21314636.

63641312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 630062 + ... + 630162.

It is an arithmetic number, because the mean of its divisors is an integer number (1574370).

Almost surely, 2^63641312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63641312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75569760).

63641312 is an abundant number, since it is smaller than the sum of its proper divisors (87498208).

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

63641312 is a wasteful number, since it uses less digits than its factorization.

63641312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 236 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 63641312 is about 7977.5505012504. The cubic root of 63641312 is about 399.2513329517.

Adding to 63641312 its reverse (21314636), we get a palindrome (84955948).

The spelling of 63641312 in words is "sixty-three million, six hundred forty-one thousand, three hundred twelve".