63886464 has 48 divisors (see below), whose sum is σ = 183843270. Its totient is φ = 21295104.

The previous prime is 63886463. The next prime is 63886469. The reversal of 63886464 is 46468836.

63886464 is a `hidden beast` number, since 638 + 8 + 6 + 4 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 63872064 + 14400 = 7992^2 + 120^2 .

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (63886463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26577 + ... + 28880.

Almost surely, 2^63886464 is an apocalyptic number.

63886464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

63886464 is an abundant number, since it is smaller than the sum of its proper divisors (119956806).

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

63886464 is a wasteful number, since it uses less digits than its factorization.

63886464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55477 (or 55462 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 63886464 is about 7992.9008501294. The cubic root of 63886464 is about 399.7633266586.

The spelling of 63886464 in words is "sixty-three million, eight hundred eighty-six thousand, four hundred sixty-four".