63968532 has 12 divisors (see below), whose sum is σ = 149259936. Its totient is φ = 21322840.

The previous prime is 63968521. The next prime is 63968537. The reversal of 63968532 is 23586936.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63968537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2665344 + ... + 2665367.

It is an arithmetic number, because the mean of its divisors is an integer number (12438328).

Almost surely, 2^63968532 is an apocalyptic number.

It is an amenable number.

63968532 is an abundant number, since it is smaller than the sum of its proper divisors (85291404).

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

63968532 is a wasteful number, since it uses less digits than its factorization.

63968532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330718 (or 5330716 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 63968532 is about 7998.0330081839. The cubic root of 63968532 is about 399.9344309190.

The spelling of 63968532 in words is "sixty-three million, nine hundred sixty-eight thousand, five hundred thirty-two".