63861952 has 56 divisors (see below), whose sum is σ = 158008320. Its totient is φ = 24879360.

The previous prime is 63861947. The next prime is 63861971. The reversal of 63861952 is 25916836.

63861952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

It is a pancake number, because a pancake can be divided into 63861952 parts by 11301 straight cuts.

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 7 ways as a sum of consecutive naturals, for example, 1552 + ... + 11407.

Almost surely, 2^63861952 is an apocalyptic number.

It is an amenable number.

63861952 is an abundant number, since it is smaller than the sum of its proper divisors (94146368).

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

63861952 is a wasteful number, since it uses less digits than its factorization.

63861952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12989 (or 12979 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 63861952 is about 7991.3673423263. The cubic root of 63861952 is about 399.7121929674.

Subtracting from 63861952 its reverse (25916836), we obtain a triangular number (37945116 = T₈₇₁₁).

It can be divided in two parts, 6386 and 1952, that added together give a palindrome (8338).

The spelling of 63861952 in words is "sixty-three million, eight hundred sixty-one thousand, nine hundred fifty-two".