63945464 has 32 divisors (see below), whose sum is σ = 135313200. Its totient is φ = 28062720.

The previous prime is 63945443. The next prime is 63945487. The reversal of 63945464 is 46454936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9977 + ... + 15080.

Almost surely, 2^63945464 is an apocalyptic number.

It is an amenable number.

63945464 is an abundant number, since it is smaller than the sum of its proper divisors (71367736).

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

63945464 is a wasteful number, since it uses less digits than its factorization.

63945464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25103 (or 25099 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The square root of 63945464 is about 7996.5907735734. The cubic root of 63945464 is about 399.8863510462.

The spelling of 63945464 in words is "sixty-three million, nine hundred forty-five thousand, four hundred sixty-four".