63975264 has 48 divisors (see below), whose sum is σ = 168412608. Its totient is φ = 21264512.

The previous prime is 63975251. The next prime is 63975269. The reversal of 63975264 is 46257936.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63975269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44119 + ... + 45545.

It is an arithmetic number, because the mean of its divisors is an integer number (3508596).

Almost surely, 2^63975264 is an apocalyptic number.

It is an amenable number.

63975264 is an abundant number, since it is smaller than the sum of its proper divisors (104437344).

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

63975264 is a wasteful number, since it uses less digits than its factorization.

63975264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907 (or 1899 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The square root of 63975264 is about 7998.4538505889. The cubic root of 63975264 is about 399.9484600260.

The spelling of 63975264 in words is "sixty-three million, nine hundred seventy-five thousand, two hundred sixty-four".